CN109191815B - Wireless auxiliary contact transfer device and method - Google Patents
Wireless auxiliary contact transfer device and method Download PDFInfo
- Publication number
- CN109191815B CN109191815B CN201810936743.8A CN201810936743A CN109191815B CN 109191815 B CN109191815 B CN 109191815B CN 201810936743 A CN201810936743 A CN 201810936743A CN 109191815 B CN109191815 B CN 109191815B
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- auxiliary contact
- signal
- wireless
- auxiliary
- relay
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- 238000012546 transfer Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000012360 testing method Methods 0.000 claims abstract description 36
- 238000004891 communication Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000008054 signal transmission Effects 0.000 claims description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009351 contact transmission Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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Classifications
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
Abstract
The invention discloses a wireless auxiliary contact transfer device and a method, which comprises at least one signal receiving and auxiliary contact output device and a plurality of auxiliary contact detecting and signal transmitting devices, wherein the auxiliary contact detecting and signal transmitting devices are in wireless communication with the signal receiving and auxiliary contact output devices, the auxiliary contact detecting and signal transmitting devices are respectively arranged at each position where auxiliary contacts need to be acquired, and auxiliary contact testing terminals on each auxiliary contact detecting and signal transmitting device are accessed to different corresponding testing terminals on the signal receiving and auxiliary contact output devices through testing lines according to the current closed or separated state of the auxiliary contacts needing to be transferred.
Description
Technical Field
The invention relates to a wireless auxiliary contact transfer device and a method.
Background
A primary switch, an isolation disconnecting link and a meter device of a transformer substation are provided with a large number of auxiliary contacts, and the switch position, meter data and trigger actions are represented by the on-off of the auxiliary contacts. When field tests are carried out, particularly relevant tests of action time, the auxiliary contacts need to be connected, the starting point of time is determined by detecting the displacement of the auxiliary contacts, the unused auxiliary contacts are distributed at various positions of a transformer substation and are far away from test equipment, and how to connect the auxiliary contacts into the test equipment, the following two methods are commonly used at present:
connect the auxiliary contact who has used, the auxiliary contact who has used in the station is unified to be inserted into and is observed and controled or trouble recorder, and the distance is nearer, can gather each auxiliary contact through connecting test equipment in this position. The method has the defects that the used auxiliary contact is connected to a direct current system in the station, the direct current with +/-110V is carried at two ends of the direct current system, a connecting wire needs to be removed from the direct current system, operation danger exists, and in addition, the contact cannot be acquired due to the fact that the auxiliary contact is removed.
The auxiliary contacts are connected to unused auxiliary contacts through long cables, the auxiliary contacts are generally arranged on the spot and connected to the unused contacts through the long cables, and the auxiliary contacts can be collected through a rear access device.
In summary, both of the two existing methods have certain defects and are not beneficial to the work of the transformer substation.
Disclosure of Invention
The invention provides a wireless auxiliary contact transfer device and a method for solving the problems, the unused auxiliary contacts are connected into an auxiliary contact detection and signal emission device, the wireless transfer of the auxiliary contacts can be realized without live operation and arrangement of long cables, and the wireless auxiliary contact transfer device has the capability of simultaneously connecting a plurality of groups of auxiliary contacts at a plurality of positions and meets the test and use requirements.
In order to achieve the purpose, the invention adopts the following technical scheme:
a wireless auxiliary contact transfer device comprises at least one signal receiving and auxiliary contact output device and a plurality of auxiliary contact detecting and signal transmitting devices, wherein the auxiliary contact detecting and signal transmitting devices are in wireless communication with the signal receiving and auxiliary contact output devices, the auxiliary contact detecting and signal transmitting devices are respectively arranged at each position where auxiliary contacts need to be collected, and auxiliary contact testing terminals on the auxiliary contact detecting and signal transmitting devices are connected to different testing terminals corresponding to the signal receiving and auxiliary contact output devices through testing lines according to the current closed or separated state of the auxiliary contacts needing to be transferred.
Furthermore, when the on-off state of the auxiliary contact is changed, the auxiliary contact detection and signal emission device automatically sends out a displacement signal to the signal receiving and auxiliary contact output device, and the signal receiving and auxiliary contact output device controls the on-off state of different corresponding test terminals after receiving the signal, so that the wireless transmission of the auxiliary contact is realized.
Furthermore, the auxiliary contact detection and signal emission device is provided with a plurality of groups of closed auxiliary contact test terminals or separated auxiliary contact test terminals.
Furthermore, a wireless communication module is arranged on the signal receiving and auxiliary contact output device, and a wireless communication module is arranged on the auxiliary contact detecting and signal transmitting device.
Further, the wireless communication is Amplitude Modulation (AM) radio waves, and preferably, an operating frequency: 433 MHz.
Further, signal reception and auxiliary contact output device specifically includes emission module, relay, power management chip and a plurality of connection port, emission module connects the power, the power passes through power management chip and is connected with the relay, each connection port is connected to the relay, emission module connects the relay.
Further, auxiliary contact detects and signal emission device, including receiving module, relay, power management chip and a plurality of connection port, auxiliary contact is connected to each connection port, and the relay gathers the back that auxiliary contact shifts, handles the back through switching power supply management chip, passes through the antenna by transmitting module and sends for receiving module, and after receiving module gathered the signal, through relay output to the normally closed normally open contact that corresponds, accomplish whole wireless transmission.
The connection ports include a normally open port, a normally closed port, and a common port.
A wireless auxiliary contact transmission method utilizes wireless communication between a plurality of auxiliary contact detection and signal transmission devices and signal receiving and auxiliary contact output devices, the auxiliary contact detection and signal transmission devices are respectively arranged at each position of an auxiliary contact to be acquired, and auxiliary contact test terminals on each auxiliary contact detection and signal transmission device are connected to different corresponding test terminals on the signal receiving and auxiliary contact output devices through test lines according to the current closed or separated state of the auxiliary contact to be transmitted, so that transmission is realized.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts a wireless transmission mode, does not need to arrange cables, and saves time and labor;
2. the invention has small volume and convenient carrying, does not need to configure a power supply for the equipment independently, and simultaneously has the capability of simultaneously accessing a plurality of test points;
3. the invention has high transmission stability, and wires are connected at the positions close to the device and the equipment, thereby reducing the risk of mistaken touch;
4. the invention does not need to adjust the original wiring in the station, does not need to remove a direct current power supply and has no operation risk;
5. the invention can be extended to be applied to wireless transmission of other contacts.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a signal receiving and auxiliary contact output device;
FIG. 3 is a schematic diagram of an auxiliary contact detecting and signal transmitting device;
wherein: 1. auxiliary contact detection and signal emission device, 2, closed auxiliary contact test connection end, 3, separated auxiliary contact test connection terminal, 4, signal receiving and auxiliary contact output device, 5, auxiliary contact output terminal corresponding to closed auxiliary contact test connection terminal, 6, auxiliary contact output terminal corresponding to separated auxiliary contact test connection terminal.
The specific implementation mode is as follows:
the invention is further described with reference to the following figures and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only terms of relationships determined for convenience of describing structural relationships of the parts or elements of the present invention, and are not intended to refer to any parts or elements of the present invention, and are not to be construed as limiting the present invention.
In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be determined according to specific situations by persons skilled in the relevant scientific or technical field, and are not to be construed as limiting the present invention.
As shown in fig. 1, the wireless auxiliary contact transfer device: configuring a signal receiving and auxiliary contact output device 4 and a plurality of auxiliary contact detecting and signal transmitting devices 1, respectively arranging the auxiliary contact detecting and signal transmitting devices 1 at each position of an auxiliary contact to be acquired, and connecting the auxiliary contact to different testing terminals 2 or 3 through a testing line according to the current closed or separated state of the auxiliary contact to be transmitted, wherein the auxiliary contact detecting and signal transmitting devices 1 can be configured with a plurality of groups 2 and 3 to meet testing requirements, when the on-off state of the auxiliary contact is changed, the device 1 automatically sends a displacement signal to be sent to the signal receiving and auxiliary contact output device 4, the signal receiving and auxiliary contact output device 4 controls the on-off of 5 or 6 after receiving the signal, and the displacement signal is output to other devices through the testing line connection 5 and 6, so as to realize the wireless transmission of the auxiliary contact.
As shown in fig. 2, the wireless communication is Amplitude Modulation (AM) radio waves, and preferably, the operating frequency: 433 MHz.
Signal reception and auxiliary contact output device specifically include emission module, relay, power management chip and a plurality of connection port, emission module connects the power, the power passes through power management chip and is connected with the relay, each connection port is connected to the relay, emission module connects the relay.
As shown in fig. 3, auxiliary contact detects and signal emission device, including receiving module, relay, power management chip and a plurality of connection port, auxiliary contact is connected to each connection port, and the relay gathers the auxiliary contact and shifts the back, handles the back through switching power management chip, passes through the antenna by transmitting module and sends for receiving module, and after receiving module gathered the signal, through relay output to the normally closed normally open contact that corresponds, accomplish whole wireless transmission.
The connection ports include a normally open port, a normally closed port, and a common port.
The key is used for starting up and long pressing to enable the equipment to enter a matching mode.
The indicator light is used for displaying the interconnection state of the equipment and the battery power.
The battery powers the device. The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (9)
1. A wireless auxiliary contact transfer device, characterized by: the auxiliary contact detection and signal transmission device is arranged at each position where the auxiliary contact is required to be acquired respectively, and the auxiliary contact test terminals on each auxiliary contact detection and signal transmission device are accessed to different corresponding test terminals on the signal receiving and auxiliary contact output device through test lines according to the current closed or separated state of the auxiliary contact which is required to be transmitted;
when the on-off of the auxiliary contact is changed, the auxiliary contact detection and signal emission device automatically sends a displacement signal to the signal receiving and auxiliary contact output device, and the signal receiving and auxiliary contact output device controls the on-off of different corresponding test terminals after receiving the signal, so that the wireless transmission of the auxiliary contact is realized;
the signal receiving and auxiliary contact output device specifically comprises a transmitting module, a relay, a power management chip and a plurality of connecting ports.
2. A wireless auxiliary contact transfer device as claimed in claim 1, wherein: the auxiliary contact detection and signal emission device is provided with a plurality of groups of closed auxiliary contact test terminals or separated auxiliary contact test terminals.
3. A wireless auxiliary contact transfer device as claimed in claim 1, wherein: the signal receiving and auxiliary contact output device is provided with a wireless communication module, and the auxiliary contact detecting and signal transmitting device is provided with a wireless communication module.
4. A wireless auxiliary contact transfer device as claimed in claim 1, wherein: the wireless communication is amplitude modulated radio waves.
5. A wireless auxiliary contact transfer device as claimed in claim 4, wherein: operating frequency of the amplitude-modulated wave: 433 MHz.
6. A wireless auxiliary contact transfer device as claimed in claim 1, wherein: the transmitting module is connected with a power supply, the power supply is connected with the relay through the power supply management chip, the relay is connected with each connecting port, and the transmitting module is connected with the relay.
7. A wireless auxiliary contact transfer device as claimed in claim 1, wherein: auxiliary contact detects and signal emission device, including receiving module, relay, power management chip and a plurality of connection port, auxiliary contact is connected to each connection port, and the relay gathers the auxiliary contact back that shifts, handles the back through switching power supply management chip, passes through the antenna by transmitting module and sends for receiving module, and after receiving module gathered the signal, exports to the normally closed normally open contact that corresponds through the relay, accomplishes whole wireless transmission.
8. A wireless auxiliary contact transfer device as claimed in claim 7, wherein: the connection ports include a normally open port, a normally closed port, and a common port.
9. A wireless auxiliary contact transfer method is characterized in that: the auxiliary contact detection and signal emission devices are respectively arranged at each position where the auxiliary contacts need to be acquired by utilizing the wireless communication between the auxiliary contact detection and signal emission devices and the signal receiving and auxiliary contact output devices, and the auxiliary contact test terminals on the auxiliary contact detection and signal emission devices are accessed to different corresponding test terminals on the signal receiving and auxiliary contact output devices through test lines according to the current closed or separated state of the auxiliary contacts needing to be transmitted, so that the transmission is realized;
the signal receiving and auxiliary contact output device specifically comprises a transmitting module, a relay, a power management chip and a plurality of connecting ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810936743.8A CN109191815B (en) | 2018-08-16 | 2018-08-16 | Wireless auxiliary contact transfer device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810936743.8A CN109191815B (en) | 2018-08-16 | 2018-08-16 | Wireless auxiliary contact transfer device and method |
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| Publication Number | Publication Date |
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| CN109191815A CN109191815A (en) | 2019-01-11 |
| CN109191815B true CN109191815B (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810936743.8A Active CN109191815B (en) | 2018-08-16 | 2018-08-16 | Wireless auxiliary contact transfer device and method |
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| CN (1) | CN109191815B (en) |
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| CN109191815A (en) | 2019-01-11 |
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