CN210089882U - Fast-insertion type multi-terminal independent power type wireless temperature measuring device - Google Patents
Fast-insertion type multi-terminal independent power type wireless temperature measuring device Download PDFInfo
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- CN210089882U CN210089882U CN201921021274.3U CN201921021274U CN210089882U CN 210089882 U CN210089882 U CN 210089882U CN 201921021274 U CN201921021274 U CN 201921021274U CN 210089882 U CN210089882 U CN 210089882U
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Abstract
The utility model provides a fast-inserting type multi-terminal independent power supply type wireless temperature measuring device, which comprises a temperature sensor, a temperature measuring module, a lithium battery and a wireless communication module, and is characterized in that the temperature measuring module is provided with an aviation plug, and the temperature sensor is connected with the aviation plug through a wire; the temperature measuring module is connected with the wireless communication module through a lead; the wireless temperature measuring device sends the detected temperature data to an external wireless acquisition device through a wireless communication module so as to display and store the data. The wireless temperature measuring device does not need to adopt an external power supply, so that the space is saved; the temperature sensor probe and the wireless temperature measuring device can be plugged and pulled more quickly, the probe can be replaced more conveniently, and meanwhile, the wiring difficulty is greatly reduced.
Description
Technical Field
The utility model relates to a temperature measurement technical field especially relates to a formula of inserting many terminals independent power source type wireless temperature measuring device soon.
Background
When temperature rise tests are carried out on transformers and switch electrical equipment, the ambient temperature and the temperatures of different parts on a test piece are monitored and used as criteria for judging whether the temperature rise tests reach a stable state or not and whether local hot spots exist or not. For example, in the corresponding standards (for example, GB1094.2-2013 power transformer part 2: temperature rise of a liquid immersed transformer), there is a requirement to record readings at regular intervals or to measure temperature using an automatic continuous recording instrument, and in some standards, the time intervals (for example, 5min, 10 min) of temperature measurement are specified.
Because most of the electrical equipment requires more measuring points during testing, less measuring points require ten measuring points, more measuring points require forty-five measuring points, even more measuring points require one hundred measuring points, and the requirement of rapid and accurate measuring is difficult to meet by adopting a manual recording mode in a small time interval. The conventional wired or wireless temperature measuring device needs an external power supply (such as 220V), and is easily limited by the distance of the power supply when a temperature monitoring point (hereinafter referred to as a temperature measuring point) is arranged. When the temperature measuring point is arranged, if the test wire or the compensating wire is relatively long (more than 3 meters), the wires are easy to cross and disorder and easy to damage when the wires are wound and unwound. When the position of a temperature measuring point is adjusted or a probe of a temperature measuring sensor is replaced, the cable needs to be laid again, and much inconvenience is brought to test work.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a quick-insert type multi-terminal independent power supply type wireless temperature measuring device, which does not need to adopt an external power supply, thus saving space; the temperature sensor probe and the wireless temperature measuring device can be plugged and pulled more quickly, the probe can be replaced more conveniently, and meanwhile, the wiring difficulty is greatly reduced.
The purpose of the utility model is realized by adopting the following technical scheme:
the quick-insertion type multi-terminal independent power supply type wireless temperature measuring device comprises a temperature sensor, a temperature measuring module, a lithium battery and a wireless communication module, wherein an aviation plug is installed on the temperature measuring module, and the temperature sensor is connected with the aviation plug through a wire; the temperature measuring module is connected with the wireless communication module through a lead; the wireless temperature measuring device sends the detected temperature data to an external wireless acquisition device through a wireless communication module so as to display and store the data.
Furthermore, the number of the aviation plugs is N, and N is a positive integer greater than 1.
Furthermore, the DCU of the temperature measurement module adopts an STM32L041 low-power-consumption single chip microcomputer.
Further, the wireless communication module adopts a wireless module with the model of ZM433 SX-M.
Furthermore, the lithium battery is a lithium battery with the capacity of 2400mAh and the output voltage of 5V.
Furthermore, the wireless temperature measuring device is compatible with two-wire system and four-wire system thermal resistors with various specifications, and can support four paths of temperature sensor probes with different types.
Further, the probe on the temperature sensor may include various types of K-type thermocouple, two-wire system thermal resistor, and four-wire system thermocouple
Further, the wireless acquisition device can initiate an instruction to the wireless communication module at certain intervals, and the wireless communication module responds and returns the temperature data to the wireless acquisition device.
The utility model discloses following beneficial effect has:
(1) an independent power supply module (storage battery) is adopted, so that an external power supply is not needed on site, the space is saved, the volume of the wireless temperature measuring device is reduced, the system is smaller, and the significance is obvious in a high-low voltage switch cabinet which is tightly arranged;
(2) the sensor probe and the wireless temperature measuring device can be plugged and pulled out more quickly, the time spent on replacing the probe is obviously reduced, the sensor probes can be pulled out in sequence when a fault occurs, the probes can be checked one by one, and the overhauling efficiency is greatly improved;
(3) the adaptability and the compatibility of the sensor probe are greatly improved, the advantages of wide thermocouple temperature measuring range and high thermal resistance temperature measuring precision are fully exerted, and meanwhile, the two-wire system and four-wire system thermal resistance with various specifications are compatible, so that the sensor probe resource can be more effectively utilized;
(4) the difficulty of wiring is reduced, the workload of wiring is greatly saved, the test equipment is convenient to disassemble and assemble when being replaced, and the test efficiency is improved;
(5) one wireless temperature measuring device supports multi-path connection, and in a measuring system with hundreds of point positions, the cost is greatly reduced.
Drawings
Fig. 1 is a block diagram of the fast-plugging multi-terminal independent power type wireless temperature measuring device of the present invention.
FIG. 2 is a schematic view of the working process of the present invention
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example (b): a quick-insertion type multi-terminal independent power supply type wireless temperature measuring device is shown in figure 1 and comprises a temperature sensor, a temperature measuring module, a lithium battery and a wireless communication module, wherein aviation plugs are installed on the temperature measuring module, the number of the aviation plugs is N, and N is a positive integer greater than 1; the temperature sensor is connected with the aviation plug through a lead; the temperature measuring module is connected with the wireless communication module through a lead; the wireless temperature measuring device sends the detected temperature data to an external wireless acquisition device through a wireless communication module so as to display and store the data.
Specifically, the DCU of the temperature measurement module adopts an STM32L041 low-power-consumption single chip microcomputer. Due to extremely low power consumption in operation, the device is very suitable for a wireless temperature measuring device which needs long-time high-frequency measurement. The operation modes of the STM32L041 low-power consumption type singlechip are as follows: sleep mode, Low-power run mode, Low-power Sleep mode, Stop mode with RTC, Stop with RTC, Standby mode with RTC, Standby mode with RTC. By switching between the modes, the power consumption of the system is reduced, and the standby time of the battery is prolonged.
Specifically, the wireless communication module adopts a wireless module with the model of ZM433 SX-M. The LoRa modulation technology design that this module adopted, the performance that restraines same frequency interference is stronger. The module adopts an SPI interface as a slave machine to be connected with a user MCU, an antenna is led out from a module pin, various sleep and standby modes are supported, and energy consumption and performance are more finely balanced. The module can obtain better balance among communication speed, transmission distance and anti-interference characteristics by adjusting variables such as spreading factor (the value is 6-12), modulation bandwidth, error correction rate and the like.
Specifically, the lithium battery is a lithium battery with the capacity of 2400mAh and the output voltage of 5V. Wherein because the dust of measuring the scene is more, temperature measuring device's operational environment is more abominable, does not reserve the interface that charges when the shell encapsulation of this wireless temperature measuring device, according to 24 hours uninterrupted duty, temperature sampling frequency 2HZ, wireless module every 2 minutes responses and passes to wireless collection system's operating mode with temperature data under, the lithium cell can stand by more than 100 days in succession. After the capacity of the battery is exhausted, the shell can be disassembled, the battery is taken out, and a special charger is adopted for charging.
Specifically, the wireless temperature measuring device is compatible with two-wire system and four-wire system thermal resistors with various specifications, and can support at most four different types of temperature sensor probes; can be conveniently replaced according to the requirement in the test process. In the test, the specification of the sensor probe can be adjusted according to the requirement, and the type of the input probe can be reconfigured by utilizing a jumper wire on the wireless temperature measuring device after the probe is adjusted.
The wireless acquisition device can initiate an instruction to the wireless communication module at intervals, and the wireless communication module responds and returns temperature data to the wireless acquisition device.
Referring to fig. 2, the working flow of the wireless temperature measuring device is as follows:
the temperature measurement module in the wireless temperature measurement device samples a temperature sensor, the sampling frequency is 5HZ, meanwhile, the acquired data are processed according to the set type of a probe of the temperature sensor, the temperature measurement precision is improved by using a median filtering algorithm, the wireless acquisition device initiates communication every 2 minutes, and the wireless communication module in the wireless temperature measurement device responds and returns the temperature data to the wireless acquisition device after receiving an instruction sent by the wireless acquisition device.
Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses an within the protection scope.
Claims (8)
1. The quick-insertion type multi-terminal independent power supply type wireless temperature measuring device comprises a temperature sensor, a temperature measuring module, a lithium battery and a wireless communication module, and is characterized in that an aviation plug is installed on the temperature measuring module, and the temperature sensor is connected with the aviation plug through a wire; the temperature measuring module is connected with the wireless communication module through a lead; the wireless temperature measuring device sends the detected temperature data to an external wireless acquisition device through a wireless communication module so as to display and store the data.
2. The fast-plugging multi-terminal independent power supply type wireless temperature measuring device according to claim 1, wherein the number of the aviation plugs is N, and N is a positive integer greater than 1.
3. The fast-plug type multi-terminal independent power supply type wireless temperature measuring device according to claim 1, wherein a drive control unit of the temperature measuring module adopts an STM32L041 low-power consumption type single chip microcomputer.
4. The fast-plug-in type multi-terminal independent power supply type wireless temperature measuring device as claimed in claim 1, wherein the wireless communication module is a wireless module with a model number ZM433 SX-M.
5. The fast plug-in type multi-terminal independent power supply type wireless temperature measuring device as claimed in claim 1, wherein the lithium battery is a lithium battery with a capacity of 2400mAh and an output voltage of 5V.
6. The fast plug-in type multi-terminal independent power supply type wireless temperature measuring device of claim 1, wherein the wireless temperature measuring device is compatible with two-wire system and four-wire system thermal resistors of various specifications and can support four different types of temperature sensor probes.
7. The fast plug-in type multi-terminal independent power supply type wireless temperature measuring device according to claim 1, wherein the probe of the temperature sensor can comprise various types of K-type thermocouples, two-wire heating resistors and four-wire thermocouples.
8. The fast-plug-in type multi-terminal independent power supply type wireless temperature measuring device as claimed in claim 1, wherein the wireless acquisition device can initiate an instruction to the wireless communication module at certain time intervals, and the wireless communication module responds and returns temperature data to the wireless acquisition device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921021274.3U CN210089882U (en) | 2019-07-03 | 2019-07-03 | Fast-insertion type multi-terminal independent power type wireless temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921021274.3U CN210089882U (en) | 2019-07-03 | 2019-07-03 | Fast-insertion type multi-terminal independent power type wireless temperature measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210089882U true CN210089882U (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921021274.3U Active CN210089882U (en) | 2019-07-03 | 2019-07-03 | Fast-insertion type multi-terminal independent power type wireless temperature measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210089882U (en) |
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2019
- 2019-07-03 CN CN201921021274.3U patent/CN210089882U/en active Active
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