CN111439678A - Power supply system for tower crane monitoring system, tower crane monitoring system and tower crane - Google Patents
Power supply system for tower crane monitoring system, tower crane monitoring system and tower crane Download PDFInfo
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- CN111439678A CN111439678A CN202010323387.XA CN202010323387A CN111439678A CN 111439678 A CN111439678 A CN 111439678A CN 202010323387 A CN202010323387 A CN 202010323387A CN 111439678 A CN111439678 A CN 111439678A
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- Prior art keywords
- tower crane
- power supply
- trolley
- lifting hook
- module
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/40—Applications of devices for transmitting control pulses; Applications of remote control devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/52—Details of compartments for driving engines or motors or of operator's stands or cabins
- B66C13/54—Operator's stands or cabins
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention relates to the technical field of engineering safety, and discloses a power supply system, a tower crane monitoring system and a tower crane. The power supply system includes: the first wireless charging device comprises a first power supply module which is arranged at the arm root and is powered by the tower crane and a first charging module which is arranged on the trolley and is used for supplying power to the first charging module through the first power supply module; the first power storage device is arranged on the trolley and used for storing the electric quantity acquired by the first charging module; the second wireless charging device comprises a second power supply module which is arranged on the trolley and connected with the first power storage device, and a second charging module which is arranged on the lifting hook and is used for supplying power to the second charging module by the second power supply module; and the second power storage device is installed on the lifting hook and connected with the second charging device, is used for storing the electric quantity acquired by the second charging module and supplies power to the second sensor on the lifting hook. The invention realizes the non-contact wireless charging among the tower crane, the trolley and the lifting hook.
Description
Technical Field
The invention relates to the technical field of engineering safety, in particular to a power supply system for a tower crane monitoring system, the tower crane monitoring system and a tower crane.
Background
Along with the development of science and technology and economy, the scale of construction engineering is continuously increased, correspondingly, the height of the tower crane is higher, the arm length is longer, the sight blind area of a driver on the tower crane is larger and larger, and the safety problem caused by the swing of the lifting hook is more serious. Under the condition, more and more people select to install the sensors on the trolley and the lifting hook of the tower crane, and the running track of the lifting hook is monitored through the sensors so as to ensure the safety of personnel and property on the spot. Up to now, sensors on trolleys and lifting hooks have been powered mainly by lithium batteries, which require the continuous replacement of the batteries by the staff concerned.
In order to avoid the drawback of constantly changing the storage battery, there are attempts in the prior art to charge the trolley and the root of the boom through the guide rail, but the charging is a contact-type wired charging. With continuous wear of the wired charging device or long-time outdoor exposure, the defects of incapability of charging or gradual exposure of the conductor and the like can be caused, and the tower crane with the conductor has huge leakage risk.
Disclosure of Invention
The invention aims to provide a power supply system for a tower crane monitoring system, the tower crane monitoring system and a tower crane, which solve the problem that the wireless charging of a lifting hook assembly cannot be realized due to the fact that the root parts of a lifting hook and a lifting arm do not have relative fixed positions, and realize the non-contact wireless power supply between the tower crane and a variable-amplitude trolley assembly and between the variable-amplitude trolley and the lifting hook assembly.
In order to achieve the above object, the present invention provides a power supply system for a tower crane monitoring system, wherein the tower crane comprises a cab, a crane arm, a variable amplitude trolley and a hook, and the power supply system comprises: a first wireless charging device, the first wireless charging device comprising: the first power supply module is arranged at the root of the crane boom and connected with a power supply in the cab, and the first charging module is arranged on the amplitude-variable trolley and used for supplying power to the first charging module through the first power supply module; the first power storage device is mounted on the amplitude variation trolley and used for storing the electric quantity acquired by the first charging module and supplying power to a first sensor on the amplitude variation trolley; the second wireless charging device comprises a second power supply module which is arranged on the amplitude-variable trolley and connected with the first power storage device, and a second charging module which is arranged on the lifting hook and used for supplying power to the second charging module by the second power supply module; and the second power storage device is arranged on the lifting hook, is connected with the second charging device, is used for storing the electric quantity acquired by the second charging module and supplies power to the second sensor on the lifting hook.
Preferably, the first wireless charging device and the second wireless charging device are devices that perform charging by an electromagnetic induction method.
Preferably, the first power supply module and the second power supply module are a first transmitting coil and a second transmitting coil, respectively; and the first charging module and the second charging module are respectively a first receiving coil and a second receiving coil.
Preferably, under the condition that the amplitude variation trolley is completely retracted to the root part of the crane boom, the distance between the first transmitting coil and the first receiving coil is a first preset distance range; and under the condition that the lifting hook is retracted to the amplitude variation trolley, the distance between the second transmitting coil and the second receiving coil is within a second preset distance range.
Preferably, under the condition that the amplitude variation trolley is retracted to the root part of the crane boom, the first transmitting coil is aligned with the center of the first receiving coil and the plane of the first transmitting coil and the plane of the first receiving coil are parallel; and under the condition that the lifting hook is retracted to the amplitude variation trolley, the second transmitting coil is aligned with the center of the second receiving coil, and the planes of the second transmitting coil and the second receiving coil are parallel.
Preferably, the plane on which the first transmitting coil, the first receiving coil, the second transmitting coil and the second receiving coil are located is perpendicular to a horizontal plane.
Preferably, a first magnetic device is installed on a first limit baffle at the root of the crane boom or the first limit baffle is a magnetic limit baffle and is used for adsorbing the luffing trolley when the luffing trolley is retracted to the root of the crane boom; and/or a second limit baffle is arranged on the lower side of the amplitude variation trolley or the upper side of the pulley block of the lifting hook, and a second magnetic device is arranged on the second limit baffle or the second limit baffle is a magnetic limit baffle and is used for adsorbing the lifting hook and the amplitude variation trolley together under the condition that the lifting hook is retracted to the amplitude variation trolley.
Preferably, the capacity of the first electric storage device is at least twice the capacity of the second electric storage device.
Through the technical scheme, the wireless power supply between the tower crane and the amplitude-variable trolley component is creatively realized through the first wireless charging device, and the wireless power supply between the amplitude-variable trolley and the hook component is realized through the second wireless charging device, so that the problem that the wireless charging of the hook component cannot be realized due to the fact that the lifting hook and the root part of the lifting arm do not have a relative fixed position is solved, and the non-contact wireless power supply between the tower crane and the amplitude-variable trolley component and between the amplitude-variable trolley and the hook component is realized.
The second aspect of the present invention further provides a tower crane monitoring system, wherein the tower crane comprises: driver's cabin, jib loading boom, change width of cloth dolly and lifting hook, tower machine monitoring system includes: the power supply system for the tower crane monitoring system.
Preferably, the tower crane monitoring system further comprises: the control device is installed in the cab, the first sensor is installed on the luffing trolley, the second sensor is installed on the lifting hook, and the wireless transmission device comprises: the first wireless transmission module is arranged at the root part of the crane boom and connected with the control device in a wired or wireless mode, and the second wireless transmission module is arranged on the luffing trolley and connected with the first sensor and used for wirelessly transmitting data between the control device and the first sensor; and the third wireless transmission module is arranged on the amplitude variation trolley and connected with the second wireless transmission device, and the fourth wireless transmission module is arranged on the lifting hook and is used for indirectly and wirelessly transmitting data between the control device and the second sensor through the first wireless transmission module and the second wireless transmission module.
Preferably, the first wireless transmission module and the second wireless transmission module are arranged face to face; and the third wireless transmission module and the fourth wireless transmission module are arranged face to face.
For specific details and benefits of the tower crane monitoring system provided by the present invention, reference may be made to the above description of the power supply system for the tower crane monitoring system, and details are not repeated herein.
The third aspect of the invention also provides a tower crane, which comprises the tower crane monitoring system.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a structural diagram of a power supply system for a tower crane monitoring system according to an embodiment of the present invention;
fig. 2 is a structural diagram of a power supply system for a tower crane monitoring system according to an embodiment of the present invention; and
FIG. 3 is a structural diagram of a tower crane monitoring system provided by the embodiment of the invention; and
fig. 4 is a block diagram of a wireless transmission device according to an embodiment of the present invention.
Description of the reference numerals
1 a first transmitting coil 2 a first receiving coil
3 second transmitting coil 4 second receiving coil
5. 6, 7 camera 8220V alternating current power supply
9 switch 10 first wireless charging device
11-14 wireless bridge 16 first power supply module
18 first charging module 20 first power storage device
25. 45 lithium battery 30 second wireless charging device
32 second power supply module 34 second charging module
40 first wireless transmission module of second power storage device 100
110 second wireless transmission module 120 third wireless transmission module
130 fourth wireless transmission module
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Before describing the embodiments of the present invention, the design concept of the present invention will be briefly described. The invention changes the conventional fixed thinking mode, namely, a power supply of the tower crane is not used as a direct power supply source of each power utilization module on the lifting hook, but a power storage device on the amplitude-variable trolley is used as a direct power supply source of each power utilization module on the lifting hook side, namely, the power storage device on the amplitude-variable trolley is used as a secondary power supply source, so that non-contact wireless power supply between the tower crane and the amplitude-variable trolley component and between the amplitude-variable trolley and the lifting hook component is realized.
Fig. 1 is a structural diagram of a power supply system for a tower crane monitoring system provided in an embodiment of the present invention. The tower crane comprises a cab, a crane arm, a variable amplitude trolley and a lifting hook. As shown in fig. 1, the power supply system may include: a first wireless charging device 10, the first wireless charging device 10 may include: a first power supply module 16 which is installed at the root of the crane boom and is connected with a power supply (for example, a 220V alternating current power supply 8 in FIG. 3) in the cab, and a first charging module 18 which is installed on the luffing trolley and is used for supplying power to the first charging module 18 through the first power supply module 16; the first power storage device 20 is mounted on the luffing trolley, and is used for storing the electric quantity obtained by the first charging module 18 and supplying power to a first sensor on the luffing trolley; the second wireless charging device 30 can comprise a second power supply module 32 which is installed on the luffing trolley and connected with the first power storage device, and a second charging module 34 which is installed on the lifting hook, and is used for supplying power to the second charging module 34 by the second power supply module 32; and a second power storage device 40, the second power storage device 40 being mounted on the hook and connected to the second charging device 34, for storing the amount of power obtained by the second charging module 34 and supplying power to a second sensor on the hook. The first power storage device 20 and the second power storage device 40 may be lithium batteries (as shown in fig. 3) or any other reasonable power storage device.
The first wireless charging device 10 and the second wireless charging device 30 may be devices that are charged by electromagnetic induction. Accordingly, the first power supply module 16 and the second power supply module 32 are a first transmitting coil 1 and a second transmitting coil 3, respectively; and the first charging module 18 and the second charging module 34 are a first receiving coil 2 and a second receiving coil 4, respectively, as shown in fig. 3.
When the tower crane works for 24 hours, the power supply system is in a working state (at the moment, the power supply system is not charged), various sensors (such as a camera 5 for acquiring a hook image and other sensors (not shown) for acquiring relevant parameters of the operation posture of the hook or the crane arm) on the luffing trolley and other power utilization modules (such as wireless bridges 12 and 13) are powered through the first power storage device 20, and various sensors (such as a camera 6 for acquiring a hook image, a camera 7 and other sensors (not shown) for acquiring relevant parameters of the operation posture of the hook) on the hook and other power utilization modules (such as a wireless bridge 14) are powered through the second power storage device 40, as shown in fig. 3; when the tower crane does not work (such as at night or at noon rest), the lifting hook is retracted to the part close to the amplitude variation trolley and the amplitude variation trolley is retracted to the root part close to the lifting arm according to the standard operation of the tower crane, as shown in figure 3. In this case, the embodiment of the present invention may control the charging efficiency of the wireless power supply system by setting the spacing and/or the relative effective area of the first transmitting coil and the first receiving coil, and the spacing and/or the relative effective area of the second transmitting coil and the second receiving coil.
It has been found that the charging efficiency of the transmitter coil and the receiver coil is optimized within a specific distance range, depending on the electromagnetic properties of the transmitter coil and the receiver coil. Thus, in an embodiment of the invention, in the case that the luffing carriage is completely retracted to the root of the boom, the distance between the first transmitting coil 1 and the first receiving coil 2 is a first preset distance range; and under the condition that the lifting hook is retracted to the amplitude variation trolley, the distance between the second transmitting coil 3 and the second receiving coil 4 is within a second preset distance range. Wherein, under the condition that the relative effective area of the coil is not less than 90%, the first preset distance range (or the second preset distance range) can be 15-30 mm.
As shown in fig. 2, when the hook is retracted to be close to the trolley part and the distance between the second transmitting coil 3 and the second receiving coil 4 reaches a second preset distance range (for example, 15-30mm), the second transmitting coil 3 and the second receiving coil 4 are automatically conducted, that is, the trolley can charge the hook through the second transmitting coil 3 and the second receiving coil 4; when the luffing trolley retracts to be close to the root part of the crane boom and the distance between the first transmitting coil 1 and the first receiving coil 2 reaches a first preset distance range (for example, 15-30mm), the first transmitting coil 1 and the first receiving coil 2 are automatically conducted, that is, the tower crane can charge the luffing trolley through the first transmitting coil 1 and the first receiving coil 2.
And, the effective relative area of the transmitting coil and the receiving coil is determined, and the larger the effective relative area of the transmitting coil and the receiving coil is, the better the corresponding charging efficiency is. Thus, in another embodiment of the invention, when the luffing carriage is retracted to the root of the boom, the first transmitting coil 1 is aligned with the center of the first receiving coil 2 and parallel to the plane of the first receiving coil 2; and in the condition that the lifting hook is retracted to the amplitude variation trolley, the second transmitting coil 3 is aligned with the center of the second receiving coil 4 and the planes of the two coils are parallel, as shown in figure 2.
In another embodiment of the invention, the inventor also designs the specific installation details of the coil by combining the actual operation condition of the tower crane and the mechanism design of the tower crane. As shown in fig. 2, firstly, in combination with the self-mechanism design of the tower crane, the first transmitting coil 1 is installed at the root of the crane boom, and the first receiving coil 2 is installed at the side of the luffing trolley close to the root of the crane boom, and the plane of the first transmitting coil and the plane of the first receiving coil are parallel to the side of the luffing trolley (i.e. perpendicular to the horizontal plane). It should be noted that the centers of the first transmitting coil 1 and the first receiving coil 2 are offset from the guide rails of the trolley in the direction perpendicular to the plane shown in fig. 2, so that the design of the first limit baffle (not shown) mentioned below does not affect the electromagnetic transmission between the first transmitting coil 1 and the first receiving coil 2. Then, by combining the actual operating condition (the lifting hook is always in a swinging state) of the tower crane and the mechanism design of the tower crane, the second transmitting coil 3 is installed on the side surface of the amplitude-variable trolley close to the lifting hook, the second receiving coil 4 is installed on the side surface of the pulley of the lifting hook close to the second transmitting coil 3, and the plane where the second transmitting coil 3 and the lifting hook are located is perpendicular to the horizontal plane. If the plane on which the second transmitting coil 3 and the second receiving coil 4 are located is set to be parallel to the horizontal plane, the second transmitting coil 3 and the second receiving coil 4 are very likely to collide with an obstacle and be damaged in the process of swinging the hook. Therefore, the design that the plane where the second transmitting coil 3 and the second receiving coil 4 are located is perpendicular to the horizontal plane in the embodiment can prevent the lifting hook from being damaged due to collision with an obstacle in the swinging process of the lifting hook, so that safe charging between the amplitude-variable trolley and the lifting hook assembly can be realized.
In addition, in order to avoid shaking or small floating between the tower crane and the amplitude variation trolley and/or between the amplitude variation trolley and the lifting hook, in this embodiment, a corresponding first magnetic device may be provided to achieve mutual adsorption between the tower crane and the amplitude variation trolley (the trolley is generally made of an iron material), and/or a second magnetic device may be provided to achieve mutual adsorption between the amplitude variation trolley and the lifting hook (the lifting hook is also generally made of an iron material), so as to achieve stability of secondary wireless charging of the tower crane.
Specifically, a first limit baffle (not shown) is designed at the root part of the crane boom, and the center of the first limit baffle is arranged on a guide rail of the luffing trolley. The first limiting baffle is provided with a first magnetic device (not shown), such as a magnet, or the first limiting baffle is a magnetic limiting baffle (such as a magnetic iron baffle) and is used for adsorbing the trolley when the trolley is retracted to the root of the crane boom. In addition, a second limit baffle (not shown) can be installed on the lower side of the luffing carriage or on the upper side of the pulley block of the lifting hook, and a second magnetic device (not shown), such as a magnet, is installed on the second limit baffle or the second limit baffle is a magnetic limit baffle, so as to attract the lifting hook and the luffing carriage together when the lifting hook is retracted to the luffing carriage. In a preferred embodiment, in order to avoid the defects that the swing property of the lifting hook causes instability when the lifting hook is adsorbed and more components are arranged on the lifting hook, the second limit baffle (not shown) can be arranged at the lower side of the amplitude variation trolley.
In order to charge the second electricity storage device 40 on the lifting hook by the first electricity storage device 20 on the luffing trolley, the capacity of the first electricity storage device 20 (for example, a lithium battery 25 in fig. 3) needs to be properly selected to ensure that the first electricity storage device 20 has enough electricity to charge the second electricity storage device 40 (for example, a lithium battery 45 in fig. 3) on the lifting hook under the normal working state of the tower crane. Further, in the present embodiment, the capacity of the first electric storage device 20 is set to be at least twice the capacity of the second electric storage device 40, in consideration of the fact that the output voltage and the output power of the first electric storage device 20 are low when the remaining capacity of the first electric storage device 20 is small, thereby reducing the charging efficiency of the second electric storage device 40. Of course, if the charging efficiency is not considered, it is sufficient to set the capacity of the first electric storage device 20 to be larger than the capacity of the second electric storage device 40.
The charging and power supplying processes of the power supply system for the tower crane monitoring system are explained and explained with reference to fig. 2.
When the tower crane does not work, the lifting hook retracts to a part close to the amplitude variation trolley and the amplitude variation trolley is tightly attached to the limiting baffle on the upper side of the lifting hook under the magnetic adsorption effect of the side of the lifting hook, at the moment, the distance between the second transmitting coil 3 and the second receiving coil 4 reaches a second preset distance range (for example, 15-30mm), the second transmitting coil 3 and the second receiving coil 4 are automatically conducted, and the amplitude variation trolley can charge the second power storage device 40 on the lifting hook through the second transmitting coil 3 and the second receiving coil 4; similarly, the luffing trolley retracts to be close to the root of the crane boom and is tightly attached to a limiting baffle plate at the root side of the crane boom under the magnetic adsorption effect at the crane boom side, at this time, the distance between the first transmitting coil 1 and the first receiving coil 2 reaches a first preset distance range (for example, 15-30mm), the first transmitting coil 1 and the first receiving coil 2 are automatically conducted, and therefore the tower crane can charge the first power storage device 20 on the luffing trolley through the first transmitting coil 1 and the first receiving coil 2. At this time, the power supply system is in a charging state.
When the tower crane works, the lifting hook is far away from the amplitude variation trolley part, once the distance between the second transmitting coil 3 and the second receiving coil 4 is larger than the maximum value of a second preset distance range (for example, 15-30mm), the second transmitting coil 3 and the second receiving coil 4 are not conducted any more, and then various sensors and other electric modules on the lifting hook can be powered through a second electric storage device 40 on the lifting hook; similarly, when the luffing jib is far away from the root of the crane boom, once the distance between the first transmitting coil 1 and the first receiving coil 2 is greater than the maximum value of the first preset distance range (for example, 15-30mm), the first transmitting coil 1 and the first receiving coil 2 are no longer conducted, and then various sensors and power utilization modules on the luffing jib can be powered through the first power storage device 20 on the luffing jib. At this time, the power supply system is in a power supply state (or operating state).
In summary, the wireless power supply between the tower crane and the amplitude variation trolley assembly is creatively realized through the first wireless charging device, and the wireless power supply between the amplitude variation trolley and the hook assembly is realized through the second wireless charging device, so that the problem that the wireless charging of the hook assembly cannot be realized due to the fact that the lifting hook and the root part of the lifting arm do not have a relative fixed position is solved, and the non-contact wireless power supply between the tower crane and the amplitude variation trolley assembly and between the amplitude variation trolley and the hook assembly is realized.
The embodiment of the invention also provides a tower crane monitoring system, wherein the tower crane comprises: cab, jib loading boom, width of cloth dolly and lifting hook become. The tower crane monitoring system can comprise: the power supply system for the tower crane monitoring system.
The tower crane monitoring system can also comprise: a control device (not shown) arranged in the cab, a first sensor (for example, a camera 5 in fig. 3) arranged on the luffing trolley, a second sensor (for example, cameras 6 and 7 in fig. 3) arranged on the lifting hook and a wireless transmission device.
In order to enable a good communication effect of a data transmission link between the tower crane (e.g., a control device) and the luffing trolley (e.g., a first sensor) and between the luffing trolley (e.g., a first sensor) and the lifting hook (e.g., a second sensor), in this embodiment, a wireless network bridge group may be disposed between the tower crane and the luffing trolley, and a wireless network bridge group may be disposed between the luffing trolley and the lifting hook.
Specifically, the wireless transmission apparatus may include: a first wireless transmission module 100 which is installed at the root of the crane boom and is connected with the control device (not shown) in a wired or wireless mode, and a second wireless transmission module 110 which is installed on the luffing carriage and is connected with the first sensor (for example, the camera 5 in fig. 3) and is used for wirelessly transmitting data between the control device (not shown) and the first sensor; and a third wireless transmission module 120 mounted on the luffing trolley and connected with the second wireless transmission device 110, and a fourth wireless transmission module 130 mounted on the hook, for indirectly and wirelessly transmitting data between the control device (not shown) and the second sensor (e.g., the cameras 6 and 7 in fig. 3) through the third wireless transmission module 120, as shown in fig. 4.
The first wireless transmission module 100, the second wireless transmission module 110, the third wireless transmission module 120, and the fourth wireless transmission module 130 may be a wireless bridge 11, a wireless bridge 12, a wireless bridge 13, and a wireless bridge 14, respectively, as shown in fig. 3. The cameras 6, 7 in fig. 3 can be connected to the wireless bridge 14 via the switch 9, i.e. the captured image data are brought together via the switch 9 and transmitted via the wireless bridge 14.
It has been found that the larger the effective relative area between two wireless transmission modules (e.g., wireless bridges), the better the corresponding data transmission efficiency. Thus, in a preferred embodiment, the first wireless transmission module 100 is disposed face-to-face with the second wireless transmission module 110; and the third wireless transmission module 120 is disposed to face the fourth wireless transmission module 130. For example, the wireless bridge 11 is arranged opposite to the transmitting side of the wireless bridge 12 (or the wireless bridge 13 and the wireless bridge 14). In a more preferred embodiment, the first wireless transmission module 100 and the second wireless transmission module 110 are arranged face to face and aligned with each other; and the third wireless transmission module 120 and the fourth wireless transmission module 130 are disposed face to face with their centers aligned. For example, the wireless bridge 11 is arranged opposite to the transmitting surface of the wireless bridge 12 (or the wireless bridge 13 is arranged opposite to the wireless bridge 14) and the transmitting centers of the two are aligned, as shown in fig. 3.
In each of the above embodiments, the two wireless bridges 12 and 13 on the variable-amplitude trolley are directly connected through a network cable, so that the optimal communication effect of the whole data transmission link among the lifting hook, the variable-amplitude trolley and the tower crane is achieved. Moreover, the wireless signal transmission scheme can ensure that the signal of the sensor can be effectively transmitted back when the lifting hook is at any position.
The following explains and explains the wireless transmission process of the monitoring data by taking the operation posture of the monitoring hook as an example.
Firstly, wirelessly transmitting hook image data (which can comprise image data of a field environment where a hook is located) acquired by a camera 5 on the luffing trolley to a control device through a wireless network bridge 12 and a wireless network bridge 11; meanwhile, hook image data acquired by the cameras 6 and 7 on the hook can be wirelessly transmitted to the variable amplitude trolley side through the wireless network bridge 14 and the wireless network bridge 13, and then the hook image data can be wirelessly transmitted to the control device through the wireless network bridge 12 and the wireless network bridge 11 directly connected with the wireless network bridge 13; then, after the control device analyzes and processes the acquired hook image data, a corresponding amplitude variation instruction can be sent to a corresponding executing mechanism (such as an amplitude variation mechanism, a swing mechanism, a hoisting mechanism and the like) so as to control the actions of the amplitude variation trolley and the hook. Therefore, the signal of the sensor can be transmitted back to the control device in a wireless transmission mode when the lifting hook is at any position (particularly between gaps formed by two buildings), and the accurate control of the lifting process is further realized.
After the height and the swing angle of the lifting hook are changed by analyzing image data, in order to acquire a clear image of the posture of the lifting hook, the control device can send a first instruction for adjusting the focal length of the camera 5 and a second instruction for adjusting the shooting angles of the cameras 6 and 7 to the amplitude-variable trolley side through the wireless network bridge 11 and the wireless network cable 12, so as to adjust the focal length of the camera 5 according to the first instruction; and the second instruction can be wirelessly transmitted to the cameras 6 and 7 at the side of the lifting hook through the wireless network bridge 13 directly connected with the wireless network bridge 12 and the wireless network bridge 14 so as to adjust the respective shooting angles according to the second instruction.
In conclusion, the invention creatively arranges two wireless bridges which are directly connected through the network cable on the amplitude variation trolley, thereby realizing the optimal communication effect of the whole data transmission link among the lifting hook, the amplitude variation trolley and the tower crane. Moreover, the wireless signal transmission scheme can ensure that the signal of the sensor can be effectively transmitted back when the lifting hook is at any position.
The embodiment of the invention also provides the tower crane, and the tower crane comprises the tower crane monitoring system.
For specific details and benefits of the tower crane provided by the embodiment of the present invention, reference may be made to the above description of the power supply system for the tower crane monitoring system and the tower crane monitoring system, and details are not described herein again.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (12)
1. A power supply system for a tower crane monitoring system, wherein the tower crane comprises a cab, a cargo boom, a variable amplitude trolley and a lifting hook, and the power supply system comprises:
a first wireless charging device, the first wireless charging device comprising: the first power supply module is arranged at the root of the crane boom and connected with a power supply in the cab, and the first charging module is arranged on the amplitude-variable trolley and used for supplying power to the first charging module through the first power supply module;
the first power storage device is mounted on the amplitude variation trolley and used for storing the electric quantity acquired by the first charging module and supplying power to a first sensor on the amplitude variation trolley;
the second wireless charging device comprises a second power supply module which is arranged on the amplitude-variable trolley and connected with the first power storage device, and a second charging module which is arranged on the lifting hook and used for supplying power to the second charging module by the second power supply module; and
and the second power storage device is arranged on the lifting hook, is connected with the second charging device, is used for storing the electric quantity acquired by the second charging module and supplies power to the second sensor on the lifting hook.
2. The power supply system for the tower crane monitoring system according to claim 1, wherein the first wireless charging device and the second wireless charging device are devices that are charged by an electromagnetic induction method.
3. The power supply system for the tower crane monitoring system according to claim 2, wherein the first power supply module and the second power supply module are a first transmitting coil and a second transmitting coil, respectively; and the first charging module and the second charging module are respectively a first receiving coil and a second receiving coil.
4. The power supply system for the tower crane monitoring system as claimed in claim 3, wherein the distance between the first transmitting coil and the first receiving coil is a first preset distance range when the amplitude variation trolley is completely retracted to the root of the crane boom; and under the condition that the lifting hook is retracted to the amplitude variation trolley, the distance between the second transmitting coil and the second receiving coil is within a second preset distance range.
5. The power supply system for the tower crane monitoring system as claimed in claim 4, wherein the first transmitting coil is aligned with the center of the first receiving coil and parallel to the plane of the first transmitting coil and the first receiving coil when the amplitude variation trolley is retracted to the root part of the cargo boom; and under the condition that the lifting hook is retracted to the amplitude variation trolley, the second transmitting coil is aligned with the center of the second receiving coil, and the planes of the second transmitting coil and the second receiving coil are parallel.
6. The power supply system for the tower crane monitoring system according to claim 5, wherein the plane where the first transmitting coil, the first receiving coil, the second transmitting coil and the second receiving coil are located is perpendicular to a horizontal plane.
7. The power supply system for the tower crane monitoring system according to claim 4,
a first magnetic device is installed on a first limit baffle at the root of the cargo boom or the first limit baffle is a magnetic limit baffle and is used for adsorbing the amplitude-variable trolley when the amplitude-variable trolley is retracted to the root of the cargo boom; and/or
And a second limit baffle is arranged on the lower side of the amplitude-variable trolley or on the upper side of the pulley block of the lifting hook, and a second magnetic device is arranged on the second limit baffle or the second limit baffle is a magnetic limit baffle and is used for adsorbing the lifting hook and the amplitude-variable trolley together under the condition that the lifting hook is retracted to the amplitude-variable trolley.
8. The power supply system for the tower crane monitoring system according to claim 1, wherein the capacity of the first power storage device is at least twice the capacity of the second power storage device.
9. A tower crane monitoring system, the tower crane comprising: driver's cabin, jib loading boom, change width of cloth dolly and lifting hook, its characterized in that, tower machine monitoring system includes: the power supply system for a tower crane monitoring system according to any one of claims 1-8.
10. The tower crane monitoring system according to claim 9, characterized in that the tower crane monitoring system further comprises: a control device arranged in the cab, a first sensor arranged on the amplitude variation trolley, a second sensor arranged on the lifting hook and a wireless transmission device,
the wireless transmission device includes: the first wireless transmission module is arranged at the root part of the crane boom and connected with the control device in a wired or wireless mode, and the second wireless transmission module is arranged on the luffing trolley and connected with the first sensor and used for wirelessly transmitting data between the control device and the first sensor; and the third wireless transmission module is arranged on the amplitude variation trolley and connected with the second wireless transmission device, and the fourth wireless transmission module is arranged on the lifting hook and is used for indirectly and wirelessly transmitting data between the control device and the second sensor through the first wireless transmission module and the second wireless transmission module.
11. The tower crane monitoring system according to claim 10, wherein the first wireless transmission module and the second wireless transmission module are arranged face to face; and the third wireless transmission module and the fourth wireless transmission module are arranged face to face.
12. A tower crane, characterized in that the tower crane comprises a tower crane monitoring system according to any one of claims 9-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010323387.XA CN111439678A (en) | 2020-04-22 | 2020-04-22 | Power supply system for tower crane monitoring system, tower crane monitoring system and tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010323387.XA CN111439678A (en) | 2020-04-22 | 2020-04-22 | Power supply system for tower crane monitoring system, tower crane monitoring system and tower crane |
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| Publication Number | Publication Date |
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| CN111439678A true CN111439678A (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010323387.XA Pending CN111439678A (en) | 2020-04-22 | 2020-04-22 | Power supply system for tower crane monitoring system, tower crane monitoring system and tower crane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115580020A (en) * | 2022-10-24 | 2023-01-06 | 徐州建机工程机械有限公司 | Electric equipment for tower crane trolley and remote control method |
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2020
- 2020-04-22 CN CN202010323387.XA patent/CN111439678A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115580020A (en) * | 2022-10-24 | 2023-01-06 | 徐州建机工程机械有限公司 | Electric equipment for tower crane trolley and remote control method |
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