CN207570676U - A kind of high-pressure switch cabinet wireless temperature-measurement - Google Patents

Abstract

The utility model discloses a kind of high-pressure switch cabinet wireless temperature-measurements, include wireless temperature measure module, the wireless communication module being connect with wireless temperature measure module and the temperature sampler being connected with wireless communication module.Wireless temperature measure module is mounted in high-tension switch cabinet at contact by the utility model, for the temperature of detection contact, by the temperature signal detected, module is sent to temperature sampler by radio communication simultaneously, data are sent to host computer computer so as to fulfill the acquisition of temperature of high-tension switch cabinet data, display, storage and alarm by temperature sampler in real time after the temperature signal received is acquired and is handled by 485 buses of RS, detection process is safe and reliable, and improves the accuracy of measurement.

Description

A wireless temperature measuring device for high voltage switchgear

technical field

The utility model relates to the field of electrical measurement, in particular to a wireless temperature measuring device for a high-voltage switch cabinet.

Background technique

With the rapid development of the national economy, the demand for electric energy in all walks of life is getting higher and higher. Therefore, the safe and reliable operation of power equipment is an important link in the security of the power grid. High-voltage switchgear is one of the important equipment in substations. Most high-voltage switchgear adopts a closed structure with poor heat dissipation conditions. When the equipment is in a long-term working state, the contacts in the switchgear are prone to heat, which will cause components to age and cause fires and other accidents. . Therefore, the internal overheating of the high-voltage switchgear with a closed structure has become a common problem in the switchgear.

Contents of the invention

The technical problem to be solved by the utility model is to provide a wireless temperature measuring device for a high-voltage switchgear. The wireless temperature measuring module is installed at the contact in the high-voltage switchgear to detect the temperature of the contact. The signal is sent to the temperature collector through the wireless communication module, and the temperature collector collects and processes the received temperature signal and then sends the data to the host computer-computer in real time through the RS-485 bus to realize the collection and display of the temperature data of the high-voltage switch cabinet , storage and alarm, thereby improving the accuracy of measurement.

The technical scheme of the utility model is:

A wireless temperature measurement device for a high-voltage switchgear, including a wireless temperature measurement module, a wireless communication module, and a temperature collector. The connection relationship between each part is: the wireless communication module is connected to the wireless temperature measurement module and the temperature collector;

The wireless temperature measurement module includes a temperature detection module, a power supply module and a CPU module. The wireless temperature measurement module is installed at the contact in the high-voltage switch cabinet to detect the temperature of the contact, and at the same time transmit the detected temperature signal through the wireless The communication module sends to the temperature collector;

The power module includes a lithium battery and a voltage regulator chip connected in sequence, wherein the voltage regulator chip is a single-chip step-down switching regulator LM2576T-ADJ;

The temperature detection module uses an intelligent digital temperature sensor DS18B20;

Described CPU module selects the AVR single-chip microcomputer that model is ATmega128 for use.

Described wireless communication module selects ZigBee wireless data transmission module for use.

The temperature collector is a multi-channel wireless temperature collector with a model number of EY-TH882.

Described ZigBee wireless data transmission module selects CC2530 chip for use.

Advantage of the utility model:

In the utility model, the wireless temperature measurement module is installed at the contact in the high-voltage switch cabinet to detect the temperature of the contact, and then the detected temperature signal is sent to the temperature collector through the wireless communication module, and the temperature collector receives the temperature signal. After the temperature signal is collected and processed, the data is sent to the host computer in real time through the RS-485 bus, so as to realize the collection, display, storage and alarm of the temperature data of the high-voltage switchgear. The measurement process is safe and reliable, and the measurement accuracy is improved. .

Description of drawings

Fig. 1 is a structural block diagram of the utility model.

Fig. 2 is a circuit diagram of the power supply module of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1, a wireless temperature measurement device for a high-voltage switchgear includes a wireless temperature measurement module 01, a wireless communication module 02, and a temperature collector 03. The connection relationship between each part is: the wireless communication module 02 and the wireless temperature measurement module respectively Module 01 is connected to temperature collector 03;

The wireless temperature measurement module 01 includes a CPU module 11, a temperature detection module 12 and a power supply module 13. The wireless temperature measurement module 01 is installed at the contact in the high-voltage switch cabinet to detect the temperature of the contact, and at the same time, the detected temperature signal Send to the temperature collector 03 through the wireless communication module 02;

As shown in Fig. 2, the power module 13 includes a lithium battery and a voltage regulator chip connected in sequence, wherein the voltage level of the lithium battery is 12V, and the voltage regulator chip is a single-chip step-down switching regulator LM2576T-ADJ, LM2576T-ADJ has a very Small voltage adjustment rate and 3A load driving capability, it can stably output 5V voltage to provide working power for CPU module 11 and temperature detection module 12;

Among them, the temperature detection module 12 selects the intelligent digital temperature sensor DS18B20 to detect the temperature of the contacts in the high-voltage switch cabinet, and the CPU module 11 selects the AVR single-chip microcomputer model ATmega128, and uses the ZigBee wireless communication technology to detect the temperature in the high-voltage switch cabinet. The temperature signal of the contact is sent to the temperature collector 03;

Among them, ZigBee wireless data transmission module 02 uses CC2530 chip;

Among them, the temperature collector 03 selects the multi-channel wireless temperature collector model EY-TH882 to collect and process the received temperature signal, and then sends the data to the host computer-computer in real time through the RS-485 bus to realize the high-voltage switch cabinet temperature. Data collection, display, storage and alarm;

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (7)

1. A high-voltage switch cabinet wireless temperature measuring device is characterized in that: it includes a wireless temperature measuring module, a wireless communication module and a temperature collector; the connection relationship between each part is: the wireless communication module is connected with the wireless temperature measuring module and the temperature sensor respectively. The collector is connected; the wireless temperature measurement module includes a temperature detection module, a power supply module and a CPU module. The wireless temperature measurement module is installed at the contact in the high-voltage switch cabinet to detect the temperature of the contact Send it to the temperature collector through the wireless communication module. 2. A wireless temperature measuring device for a high-voltage switchgear according to claim 1, wherein the power module includes a lithium battery and a voltage stabilizing chip connected in sequence, wherein the voltage stabilizing chip is a single-chip step-down type Switching regulator LM2576T-ADJ. 3. A wireless temperature measuring device for a high-voltage switchgear according to claim 1, characterized in that: the temperature detection module is an intelligent digital temperature sensor DS18B20. 4. A wireless temperature measuring device for a high-voltage switchgear according to claim 1, wherein the CPU module is an AVR single-chip microcomputer whose model is ATmega128. 5. A wireless temperature measuring device for a high-voltage switchgear according to claim 1, characterized in that: the wireless communication module is a ZigBee wireless data transmission module. 6. A wireless temperature measuring device for a high-voltage switchgear according to claim 1, characterized in that: the temperature collector is a multi-channel wireless temperature collector with a model number of EY-TH882. 7. A wireless temperature measuring device for a high-voltage switchgear according to claim 5, characterized in that: the ZigBee wireless data transmission module uses a CC2530 chip.