CN209945557U - Switch cabinet contact temperature measuring device based on radio frequency technology - Google Patents

Abstract

The utility model provides a cubical switchboard contact temperature measuring device based on radio frequency technology, including host computer and wireless temperature measuring device, wireless temperature measuring device includes a plurality of temperature measurement transmitting module and one or more temperature measurement receiving module, every temperature measurement transmitting module all include temperature sensor and connect in temperature sensor's temperature measurement end radio frequency chip, every temperature measurement receiving module include receiving terminal radio frequency chip, just the equal radio frequency connection of temperature measurement end radio frequency chip is in corresponding receiving terminal radio frequency chip, the host computer include microprocessor and connect in microprocessor's display screen, and every receiving terminal radio frequency chip all wired connection in microprocessor. The utility model has the advantages of simple structure, the temperature measurement part occupies smallly, and the temperature measurement is accurate, and data transmission interference killing feature is strong.

Description

Switch cabinet contact temperature measuring device based on radio frequency technology

Technical Field

The utility model belongs to the technical field of the cubical switchboard temperature measurement, especially, relate to a cubical switchboard contact temperature measuring device based on radio frequency technology.

Background

The connection points of a plurality of high-voltage electrical equipment and among the equipment in the power grid are the weakest links of power transmission, and the essential problem of the weak links is that the connection points generate heat. Therefore, the power system takes various measures to monitor the temperature rise of the high-voltage connecting point without worrying about manpower and financial resources.

Before the development of a wireless temperature measurement technology, the temperature of a connection point is collected by adopting manual temperature measurement or infrared temperature measurement, but the problems of inconvenience in temperature measurement, large workload and the like exist in the manual temperature measurement; the infrared temperature measurement has certain technical defects, for example, the infrared temperature measurement needs to connect an infrared sensor and a host computer, and is not suitable for a closed space, and an infrared probe must keep a certain safe distance from a measured object and needs to be just opposite to the surface of the measured object, and the space of the switch cabinet is limited, so that the infrared probe cannot be installed in many times, and the practicability of the infrared temperature measurement sensor in the switch cabinet is low.

In order to solve the problems of sealing and space, people have long-term exploration, wireless temperature measuring sensors are produced accordingly, the wireless temperature measuring sensors can directly transmit temperature data to a host and do not need to be wired from a detection point, but the wireless sensors still have partial defects, for example, the wireless sensors directly transmit data to the host, the transmission path is long, the data transmission process is easily interfered, the temperature measuring part needs a wireless device to realize wireless communication with the host, but the cost of the wireless device is high, the required network environment is complex, the size is large, the cost of the whole wireless sensor is increased, the temperature measuring part located at the temperature measuring point still has a large size, and the wireless temperature measuring sensor is still not suitable for the space.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, a cubical switchboard contact temperature measuring device based on radio frequency technology is provided.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides a cubical switchboard contact temperature measuring device based on radio frequency technology, includes host computer and wireless temperature measuring device, wireless temperature measuring device includes a plurality of temperature measurement transmitting module and one or more temperature measurement receiving module, every temperature measurement transmitting module all include temperature sensor and connect in temperature sensor's temperature measurement end radio frequency chip, every temperature measurement receiving module includes receiving terminal radio frequency chip, just the equal radio frequency of temperature measurement end radio frequency chip is connected in corresponding receiving terminal radio frequency chip, the host computer include microprocessor and connect in microprocessor's display screen, and every receiving terminal radio frequency chip all wired connection in microprocessor.

In the switch cabinet contact temperature measuring device based on the radio frequency technology, the wireless temperature measuring device comprises a temperature measuring receiving module, and a plurality of temperature measuring end radio frequency chips are all connected to a receiving end radio frequency chip of the temperature measuring receiving module in a radio frequency mode.

In the switch cabinet contact temperature measuring device based on the radio frequency technology, the temperature sensor comprises a temperature measuring chip, and the temperature measuring chip is connected to the temperature measuring end radio frequency chip.

In the switch cabinet contact temperature measuring device based on the radio frequency technology, the model of the temperature measuring chip is DS18B 20.

In the switch cabinet contact temperature measuring device based on the radio frequency technology, the plurality of temperature measuring transmitting modules are respectively installed at a plurality of devices in the switch cabinet and/or at connecting points among the devices.

In the switch cabinet contact temperature measuring device based on the radio frequency technology, the plurality of temperature measuring and transmitting modules are respectively installed at any one or more positions of a busbar, a fixed contact, a high-voltage contact and a cable lap joint in the switch cabinet.

In the switch cabinet contact temperature measuring device based on the radio frequency technology, the temperature measuring receiving module is installed on the cabinet wall of the incoming line chamber or the outgoing line chamber.

In the switch cabinet contact temperature measuring device based on the radio frequency technology, the temperature measuring receiving module comprises a receiving shell, and the temperature measuring receiving module is installed on the wall of the incoming line room in a buckling or guide rail mode through the receiving shell.

In the switch cabinet contact temperature measuring device based on the radio frequency technology, the host further comprises an alarm device, and the alarm device is connected to the microprocessor.

In the switch cabinet contact temperature measuring device based on the radio frequency technology, the host further comprises a communication interface, and the microprocessor is connected to the upper computer through the communication interface.

The utility model has the advantages that: the temperature measurement transmitting module for measuring temperature is directly arranged at a point to be measured, so that the temperature measurement accuracy is ensured, and the problem of electrical insulation is solved by adopting a wireless transmission mode; the structure is simple, the occupied volume of the temperature measuring part is small, and the temperature measuring part is not easily limited by the structure of the switch cabinet; the radio frequency technology is used as an intermediate station for temperature data transmission between the temperature measurement part and the host, so that the purpose of wireless temperature measurement is achieved, and the anti-interference performance and accuracy of data transmission are guaranteed.

Drawings

Fig. 1 is an application schematic diagram of the switch cabinet contact temperature measuring device based on the radio frequency technology;

fig. 2 is the structure schematic diagram of the switch cabinet contact temperature measuring device based on the radio frequency technology.

Reference numerals: a host 1; a microprocessor 11; a display screen 12; a communication interface 13; an alarm device 14; a temperature measurement transmitting module 2; a temperature sensor 21; a temperature measurement end radio frequency chip 22; a temperature measurement receiving module 3; a receiving end radio frequency chip 31; an upper computer 4; a bus bar chamber 5; a bus bar bushing 51; a breaker chamber 6; a main machine room 7; a wire outlet chamber 8; a cable chamber 9; a ground switch 91; an arrester 92; a cable 93; a transformer 94.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, the present embodiment discloses a switch cabinet contact temperature measuring device based on radio frequency technology, and it should be understood by those skilled in the art that the switch cabinet has a cable chamber 9, a bus chamber 5, a breaker chamber 6, an outlet chamber 8 and a main cabinet chamber 7 for displaying the monitoring results and controlling the switch cabinet.

Furthermore, cubical switchboard contact temperature measuring device includes host computer 1 and wireless temperature measuring device, and host computer 1 is located host computer room 7, and host computer 1 includes microprocessor 11 and connects in microprocessor 11's display screen 12. The wireless temperature measuring device is used for monitoring the real-time temperature of the position of the internal connection point of the switch cabinet.

Specifically, the wireless temperature measuring device comprises a plurality of temperature measuring transmitting modules 2 and one or more temperature measuring receiving modules 3, and each temperature measuring transmitting module 2 comprises a temperature sensor 21 and a temperature measuring end radio frequency chip 22 connected to the temperature sensor 21. Specifically, the temperature sensor 21 includes a temperature measurement chip, the temperature measurement chip is connected to the temperature measurement end radio frequency chip 22, and the model of the temperature measurement chip in this embodiment is DS18B 20.

Further, a plurality of thermometric emission modules 2 may be respectively installed at a plurality of devices and/or at connection points between the devices within the switchgear. Because the connecting point between the equipment is the weakest link of power transmission, so this embodiment arranges the temperature measurement emission module 2 in the connecting point such as female arranging, high voltage contact and cable overlap joint. Preferably, the temperature measurement emission module 2 has an insulating housing, and the insulating housing has a watchband or a buckle and other mounting structures, and is mounted at the point to be measured through the mounting structures.

Similarly, each temperature measurement receiving module 3 includes a receiving end rf chip 31, where the number of the temperature measurement receiving module and the number of the temperature measurement transmitting module may be the same or different, and when the number of the temperature measurement receiving module and the number of the temperature measurement transmitting module are the same, the temperature measurement receiving module and the temperature measurement transmitting module are in one-to-one correspondence, and when the number of the temperature measurement transmitting module and the number of the temperature measurement transmitting module are not the same, each receiving end rf chip 31 may also correspond to a plurality of temperature measurement end rf chips 22, each temperature measurement end rf chip 22 is rf-connected to the corresponding receiving end rf chip.

Particularly, the embodiment prefers one temperature measurement receiving module 3, in this case, the receiving end rf chip 31 of the one temperature measurement receiving module 3 is rf connected to the plurality of temperature measurement end rf chips 22, and the receiving end rf chip 31 is wired to the microprocessor 11. It should be noted that, as those skilled in the art should know, the radio frequency chip itself generally carries identification information that can be recognized by the host, and similarly, each temperature measurement end radio frequency chip 22 herein also carries identification information that can be acquired by the receiving end radio frequency chip 31, the temperature measurement end radio frequency chip 22 sends the identification information to the receiving end radio frequency chip 31 when sending temperature data to the receiving end radio frequency chip 31, and the receiving end radio frequency chip 31 binds the corresponding identification information and the temperature data to the host 1 when forwarding the temperature data.

The short-distance wireless transmission of signals between the receiving end radio frequency chip 31 and the temperature measuring end radio frequency chip 22 is realized through radio frequency connection, and the wireless transmission device has the advantages of good transmission performance, strong anti-interference capability and the like. Meanwhile, the radio frequency chip 31 of the wired receiving end of the microprocessor 11 is used for receiving temperature measurement results of all the temperature measuring devices, wired transmission also has the advantages of good transmission performance and strong anti-interference capability, the radio frequency technology is used as a transfer station between the wireless temperature measuring devices and the host 1, the purpose of wireless temperature measurement of multiple joints in the switch cabinet is achieved, the size of temperature measurement parts at each temperature measurement point is reduced, the overall structure is simplified, a complex network environment is not needed, and the anti-interference performance of the data transmission process can be guaranteed.

Further, the temperature measurement receiving module 3 is installed on the cabinet wall of the incoming line chamber or the outgoing line chamber 8, and this embodiment is preferably installed on the inner cabinet wall of the outgoing line chamber 8. And further, the temperature measurement receiving module 3 comprises a receiving shell, and the temperature measurement receiving module 3 is installed on the wall of the wire inlet chamber cabinet in a buckling or guide rail mode through the receiving shell. The specific installation method is not described herein any more, as long as the installation purpose can be achieved.

Preferably, the host 1 further comprises an alarm device 14 and a communication interface 13, the communication interface can be an RS485 interface, the alarm device 14 and the communication interface 13 are both connected to the microprocessor 11, and the microprocessor 11 is connected to the upper computer 4 through the communication interface 13.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although host 1 is used more herein; a microprocessor 11; a display screen 12; a communication interface 13; an alarm device 14; a temperature measurement transmitting module 2; a temperature sensor 21; a temperature measurement end radio frequency chip 22; a temperature measurement receiving module 3; a receiving end radio frequency chip 31; an upper computer 4; a bus bar chamber 5; a bus bar bushing 51; a breaker chamber 6; a main machine room 7; a wire outlet chamber 8; a cable chamber 9; a ground switch 91; an arrester 92; a cable 93; transformers 94, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (10)

1. The utility model provides a cubical switchboard contact temperature measuring device based on radio frequency technology, a serial communication port, including host computer (1) and wireless temperature measuring device, wireless temperature measuring device includes a plurality of temperature measurement emission module (2) and one or more temperature measurement receiving module (3), every temperature measurement emission module (2) all include temperature sensor (21) and connect in temperature measurement end radio frequency chip (22) of temperature sensor (21), every temperature measurement receiving module (3) include receiving terminal radio frequency chip (31), just the equal radio frequency of temperature measurement end radio frequency chip (22) is connected in corresponding receiving terminal radio frequency chip (31), host computer (1) include microprocessor (11) and connect in display screen (12) of microprocessor (11), and every receiving terminal radio frequency chip (31) all wired connection in microprocessor (11).

2. The switch cabinet contact temperature measuring device based on the radio frequency technology as claimed in claim 1, wherein the wireless temperature measuring device comprises a temperature measuring receiving module (3), and a plurality of temperature measuring end radio frequency chips (22) are all connected to a receiving end radio frequency chip (31) of the temperature measuring receiving module (3) in a radio frequency mode.

3. The switchgear cabinet contact temperature measuring device based on the radio frequency technology of claim 1 or 2, wherein the temperature sensor (21) comprises a temperature measuring chip, and the temperature measuring chip is connected to the temperature measuring end radio frequency chip (22).

4. The switchgear contact temperature measuring device based on the radio frequency technology as claimed in claim 3, wherein the model of the temperature measuring chip is DS18B 20.

5. The switchgear cabinet joint temperature measuring device based on the radio frequency technology according to claim 4, wherein a plurality of temperature measuring transmitting modules (2) are respectively installed at a plurality of devices and/or at the connecting points between the devices in the switchgear cabinet.

6. The switch cabinet contact temperature measuring device based on the radio frequency technology as claimed in claim 5, wherein the plurality of temperature measuring emission modules (2) are respectively installed at any one or more of a busbar, a static contact, a high voltage contact and a cable lap joint in the switch cabinet.

7. The switchgear cabinet contact temperature measuring device based on the radio frequency technology as claimed in claim 6, wherein the temperature measuring receiving module (3) is installed on the cabinet wall of the incoming line chamber or the outgoing line chamber.

8. The switchgear contact temperature measuring device based on radio frequency technology according to claim 7, wherein the temperature measuring receiving module (3) comprises a receiving housing, and the temperature measuring receiving module is mounted on the incoming line room cabinet wall through the receiving housing in a manner of a buckle or a guide rail.

9. The switchgear cabinet contact temperature measuring device based on radio frequency technology according to claim 8, characterized in that the main unit (1) further comprises an alarm device (14), and the alarm device (14) is connected to the microprocessor (11).

10. The switchgear cabinet contact temperature measuring device based on the radio frequency technology as claimed in claim 9, wherein the host (1) further comprises a communication interface (13), and the microprocessor (11) is connected to the upper computer (4) through the communication interface (13).

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