CN208488178U - Temperature measurement system - Google Patents
Temperature measurement system Download PDFInfo
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- CN208488178U CN208488178U CN201820783434.7U CN201820783434U CN208488178U CN 208488178 U CN208488178 U CN 208488178U CN 201820783434 U CN201820783434 U CN 201820783434U CN 208488178 U CN208488178 U CN 208488178U
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Abstract
The utility model discloses a kind of temperature measurement systems, including several temperature measurement nodes and a system host；Temperature measurement node includes the RF receiving circuit, booster circuit and control circuit being sequentially connected in series, and RF receiving circuit, booster circuit and control circuit are grounded, temperature measurement node further includes the storage capacitor that one end is electrically connected between RF receiving circuit and booster circuit, the other end is grounded, RF receiving circuit is electrically connected with first antenna, control circuit is electrically connected with temperature sensor and for the second antenna, and control circuit solidification has id information；System host provides the radiofrequency signal of electric energy conversion for each temperature measurement node, and receives the data packet including temperature information and id information of each temperature measurement node transmitting.By above embodiment, passive and wireless has high isolation and safety, has ensured the stability of high electric system, economic results in society with higher suitable for the thermometric of high voltage electric switch cabinet.
Description
Technical field
The utility model relates in electric system passive and wireless monitoring device technical field more particularly to one kind be suitable for
To the temperature measurement system of high voltage electric switch cabinet thermometric.
Background technique
High-tension switch cabinet contact, high-voltage busbar connector, circuit breaker connector, underground cable in electric system high-tension apparatus etc.
Power equipment, will appear aging in During Process of Long-term Operation or contact resistance is excessive and generate heat, and generates heat and understand acceleration equipment
Aging or contact resistance further increase, and fever is caused to aggravate, therefore enter a vicious circle, are finally easy to cause equipment
Damage.It is also more and more important to the temperature monitoring of high tension voltage equipment with the development of the city with the construction of smart grid.In real time
The temperature for accurately measuring breaker etc. is the key that prevent accident.Thermometric mode is broadly divided into wired thermometric and wireless survey
Temperature, wired thermometric not can guarantee insulating properties, thus high-voltage electric power system be strongly proposed with the mode of wireless non-contact temperature measuring into
Row thermometric.
Currently, the modes such as common infrared measurement of temperature, wired thermometric and passive wireless acoustic surface wave thermometric carry out it is wireless non-
Contact thermography.Wherein, infrared measurement of temperature needs infrared light path, and switchgear is enclosed construction, can not be surveyed with infrared temperature-measuring gun
Amount；Wired thermometric uses lithium battery power supply, battery capacity and restricted lifetime, and replacement is difficult, and maintenance cost is high, and lithium battery
Inflammable and explosive under high temperature environment, safety is lower than breaker of switch cabinet itself；Passive wireless acoustic surface wave thermometric passes through survey
The changed measurement amount temperature value for measuring radio frequency signal, is transmitted using analog quantity, vulnerable to interference, low precision.
It follows that the above wireless non-contact temperature measuring mode is not suitable for the temperature monitoring to high tension voltage equipment, it need
A kind of novel valid wireless non-contact temperature measuring mode is provided.
Utility model content
The utility model provides a kind of temperature measurement system to solve above-mentioned technical problem, and passive and wireless is suitable for height
The thermometric of piezoelectric forces switchgear has high isolation and safety, has ensured the stability of high electric system, society with higher
It can economic benefit.
In order to solve the above technical problems, the utility model provides a kind of temperature measurement system, comprising: several temperature measurement nodes with
An and system host；The temperature measurement node includes the RF receiving circuit, booster circuit and control circuit being sequentially connected in series, and
The RF receiving circuit, booster circuit and control circuit are grounded, and the temperature measurement node further includes that one end is electrically connected to and penetrates
Frequently it receives between circuit and booster circuit, the storage capacitor of other end ground connection, the RF receiving circuit is electrically connected with for connecing
Receive the first antenna of the radiofrequency signal of external emission, the control circuit be electrically connected with temperature sensor for measuring temperature and
For the temperature information measured to be sent to the second antenna of external host, the control circuit solidification has id information；It is described
System host provides the radiofrequency signal of electric energy conversion for each temperature measurement node, and receive each temperature measurement node transmitting includes temperature
Spend the data packet of information and id information.
Further, the system host includes being electrically connected with control module for receiving it by the second antenna
Data packet be uploaded to the WIFI module of cloud server.
Further, the temperature measurement system includes the cloud server for being connected with wireless router, for storing
The data packet of system host upload is stated so that configuration-direct is checked and assigned online to personal terminal.
Further, the system host includes control module and is electrically connected respectively with control module: with external power supply
Connection is used to provide the power module of operating voltage, the first antenna for emitting radiofrequency signal, for connecing for control module
Receive the second antenna of the data packet that temperature measurement node is sent and the display module for showing information included by data packet.
Further, the first antenna of the system host is identical with the first antenna frequency of temperature measurement node, the system
Second antenna of host and the second antenna frequencies of temperature measurement node are identical.
Further, the first antenna of the system host is different with the frequency of the second antenna.
Further, the communication frequency of the first antenna of the system host is the communication frequency of 915MHz, the second antenna
It is 2.44GHz.
Further, the display module is made of the multiple charactrons for corresponding to temperature measurement node quantity, and each charactron is aobvious
Show the temperature information of temperature measurement node measurement；Alternatively, the display module is a display screen, correspondence is divided on display screen
The display area of temperature measurement node quantity, each display area show the temperature information of temperature measurement node measurement.
Further, in the temperature measurement node booster circuit include be sequentially connected in series in RF receiving circuit and control circuit it
Between hysteresis comparator unit and boosting unit, the pressure difference at the storage capacitor both ends reaches the first of hysteresis comparator unit
When threshold value, the boosting unit works and output services voltage is to control circuit, and the pressure difference at the storage capacitor both ends
When dropping to the second threshold value of hysteresis comparator unit, the boosting unit stops working and stops output services voltage to control
Circuit processed.
Further, the RF receiving circuit in the temperature measurement node, booster circuit, control circuit, storage capacitor, first
Antenna, the second antenna and temperature sensor are often integrated on same pcb board；The temperature measurement node further includes the cylinder of both ends perforation
Shape ontology, inner casing of the cylindrical body by shell and with heating conduction are constituted, and the pcb board is fixedly arranged in cylindrical body,
And the temperature sensor fits in inner casing setting, the first antenna and the second antenna are software material and are pasted on tubular sheet
Internal portion.
The temperature measurement system of the utility model, has the following beneficial effects:
Temperature measurement node replaces battery by setting storage capacitor and has the RF receiving circuit of antenna to storage by setting
Can capacitor carry out charging and can be realized passive, launch outward temperature information by the way that antenna is arranged and can be realized wirelessly, and be arranged and be
Host cooperation temperature measurement node realization of uniting is above-mentioned passive and wireless, and then realizes high_voltage isolation, improves safety, can work
The various severe applications such as Qiang Ci, forceful electric power, dust substantially reduce the excessively high caused related accidents of temperature, improve power train
The stability of system, economic results in society with higher；
In addition, id information is had cured for each temperature measurement node, in multiple temperature measurement nodes simultaneously in use, utilizing the id information energy
It is enough effectively to distinguish temperature measured by each temperature measurement node.
Detailed description of the invention
Fig. 1 is the frame construction drawing of the utility model temperature measurement system.
Fig. 2 is the circuit diagram of temperature measurement node in temperature measurement system shown in Fig. 1.
Fig. 3 is the working method schematic diagram of booster circuit in temperature measurement node shown in Fig. 2.
Fig. 4 is the structural schematic diagram of temperature measurement node shown in Fig. 2.
Specific embodiment
The utility model is described in detail with embodiment with reference to the accompanying drawing.
Fig. 1 and Fig. 2 are please referred to, the utility model provides a kind of temperature measurement system.The temperature measurement system includes several
Temperature measurement node 10 and a system host 20.The temperature measurement node 10 includes RF receiving circuit 2, booster circuit 4 and control electricity
Road 6.RF receiving circuit 2, booster circuit 4 and control circuit 6 are sequentially connected in series and three is grounded.The temperature measurement node 10 also wraps
Include storage capacitor 3, first antenna 1, the second antenna 7 and temperature sensor 8.One end of storage capacitor 3 is electrically connected to radio frequency and connects
It receives between circuit 2 and booster circuit 4, the other end is grounded.First antenna 1 is electrically connected to RF receiving circuit 2.Second antenna, 7 He
Temperature sensor 8 is electrically connected in control circuit 6.Solidification has id information with uniqueness in the control circuit 6, to be applicable in
Under multiple 10 use occasions simultaneously of temperature measurement node, temperature measured by each temperature measurement node 10 is effectively distinguished using the id information.
Wherein, the output end of RF receiving circuit 2 is electrically connected with the input terminal of booster circuit 4, the output end of booster circuit 4
It is electrically connected with an input terminal of control circuit 6,3 one end of storage capacitor is electrically connected to output end and the boosting of RF receiving circuit 2
Between the input terminal of circuit 4, first antenna 1 is electrically connected to the input terminal of RF receiving circuit 2, and temperature sensor 8 is electrically connected to
Another input terminal of control circuit 6, the second antenna 7 are electrically connected to the output end of control circuit 6.
Specifically, RF receiving circuit 2 receives radiofrequency signal to storage capacitor from system host 20 by first antenna 1
3 charge, and the voltage that storage capacitor 3 discharges boost and then be powered to control circuit 6 by booster circuit 4, control
Circuit 6 is powered to temperature sensor 8 in turn.In turn, control circuit 6 reads the temperature information measured from temperature sensor 8,
And the data packet including temperature information and id information is launched outward to system host 20 by the second antenna 7, realize passive and wireless
Temperature measurement, it is ensured that power equipment operational security.
Wherein, which includes control module 21 and is electrically connected respectively with control module 21: with external power supply
Connection for for control module 21 provide the power module 22 of operating voltage, the first antenna 23 for emitting radiofrequency signal,
Display for receiving the second antenna 24 of the data packet of the transmission of temperature measurement node 10 and for showing information included by data packet
Module 25.
Preferably, in order to which the energy of matching system host 20 and each temperature measurement node 10 is sent to and data receiver, system master
The first antenna 23 of machine 20 is identical with 1 frequency of first antenna of temperature measurement node 10,24 He of the second antenna of the system host 20
7 frequency of the second antenna of temperature measurement node 10 is identical.
Preferably, in order to improve the reliability of data communication, energy and communication use the antenna of different frequency.That is, being
First antenna 23 and the second antenna 24 in system host 20 use different frequency, similarly, 1 He of first antenna in temperature measurement node 10
Second antenna 7 uses different frequency.For example, the usual selected frequency of first antenna 23 in system host 20 is 915Mhz,
The usually optional frequency of second antenna 24 is 2.44Ghz, and similarly, the usual selected frequency of first antenna 1 in temperature measurement node 10 is
915Mhz, the usually optional frequency of the second antenna 7 is 2.44Ghz.
Wherein, the display module 25 in system host 20 is made of multiple charactrons of corresponding 10 quantity of temperature measurement node, often
The temperature information of a one temperature measurement node 10 of numeral method measurement.Alternatively, display module 25 is a display screen, on display screen
It is divided into the display area of corresponding 10 quantity of temperature measurement node, each display area shows the temperature letter that a temperature measurement node 10 measures
Breath, which is LCD display or LED display.
Preferably, the diode that can connect on the storage capacitor 3 in temperature measurement node 10, utilizes the unidirectional of diode
Electric conductivity charges to storage capacitor 3.
In one embodiment, the booster circuit 4 in temperature measurement node 10 include be sequentially connected in series in rf receiver unit and
Hysteresis comparator unit and boosting unit between control circuit 6.The input terminal and RF receiving circuit 2 of hysteresis comparator unit
Output end electrical connection, output end be electrically connected with the input terminal of boosting unit, the output end of boosting unit is defeated with control circuit 6
Enter end electrical connection.Specifically, the pressure difference V at 3 both ends of storage capacitorCAPReach the first threshold value V of hysteresis comparator unitMAX
When, boosting unit work and output services voltage is to control circuit 6, and the pressure difference V at 3 both ends of storage capacitorCAPDrop to sluggishness
Second threshold value V of comparator unitMINWhen (less than the first threshold value), boosting unit stops working and stops output services electricity
It presses to control circuit 6.
As shown in figure 3, the first threshold value in temperature measurement node 10 is set 1.2V by citing, the second threshold value is set as
1.0V, operating voltage are set as 3.3V.Booster circuit 4 start 3.3V voltage output and stop voltage output between have 1.2-1.0=
The stability of power supply can be improved in the hysteresis voltage of 0.2V.Wherein, thermometric can not be carried out immediately when control circuit 6 starts
Operation, but enter the suspend mode of low-power consumption, so that storage capacitor 3 accumulates more electricity, storage to higher voltage.And
For the real-time and low-power consumption of balancing a survey data, the utility model can carry out temperature using the period for being for example spaced 30 seconds
Measurement, then carries out wireless data transmission, after, temperature sensor 8 and control circuit 6 are simultaneously into the suspend mode mould of low-power consumption
Formula.Certainly, if the components such as control circuit 6 can be made to tie up in a long time when the electricity that storage capacitor 3 stores is enough
It holds in the state of suspend mode or wake-up.
In one embodiment, filtering can be set between the booster circuit 4 in temperature measurement node 10 and control circuit 6
Capacitor 5, wherein 5 one end of filter capacitor is connected between the output end of booster circuit 4 and the input terminal of control circuit 6, is another
End ground connection, to improve voltage output stability.
In above-described embodiment, the control module 21 in control circuit 6 and system host 20 in temperature measurement node 10 can be adopted
With CPU, MCU, single-chip microcontroller etc..The utility model citing uses single-chip microcontroller, such as the single-chip microcontroller of model nRF24LE1.Temperature measurement node
Digital temperature sensor 8 can be selected in temperature sensor 8 in 10, and temperature measurement accuracy usually may be up to 1 DEG C or more, the utility model
The digital temperature sensor 8 of tmp112 model is selected in citing.
In one embodiment, as shown in figure 4, above-mentioned RF receiving circuit 2, booster circuit 4, control circuit 6, storage
Energy capacitor 3, first antenna 1, the second antenna 7 and temperature sensor 8 are often integrated on a pcb board.Preferably, for convenience of installing
On the connector of power equipment such as high voltage electric switch breaker, which further includes the cylindrical body 9 of both ends perforation,
Cylindrical body 9 includes shell 91 and such as copper inner casing 92 of inner casing 92 with excellent heat conductivity, and the two passes through such as snapping or is spirally connected
Etc. modes be assembled integrally.The above-mentioned pcb board for integrating each circuit block is fixedly arranged in cylindrical body 9 (i.e. shell 91 and inner casing 92
Between), and temperature sensor 8 fits in the setting of inner casing 92, first antenna 1 and the second antenna 7 are software material and are pasted on cylinder
9 inside wall surface of shape ontology, the first antenna 1 and the citing of the second antenna 7 can stretch out in the identical or different end of cylindrical body 9
Portion.When the temperature measurement node 10 installation to connector, it is directly socketed on joint, inner casing 92 abuts with connector and conducts connector generation
Heat to temperature sensor 8 measure.Certainly, according to the difference of joint geometry, cylindrical body 9 may be set to be other
Shape.
In one embodiment, with continued reference to Fig. 1, system host 20 is electrically connected with its control module 21, uses
In the WIFI module 26 that it is uploaded to cloud server 30 by the data packet that the second antenna 24 receives.Correspondingly, the temperature
Spending measuring system includes the cloud server 30 for being connected with wireless router 31, the data packet uploaded for storage system host 20
So that user is checked and is assigned online phase by personal terminal (espespecially mobile terminal) such as notebook, mobile phone, tablet computer
The configuration-direct of pass.
The temperature measurement system of the utility model, has the following beneficial effects:
Temperature measurement node 10 replaces battery by setting storage capacitor and has the RF receiving circuit pair of antenna by setting
Storage capacitor carries out charging and can be realized passive, launches outward temperature information by the way that antenna is arranged and can be realized wirelessly, and is arranged
It is above-mentioned passive and wireless that system host 20 cooperates temperature measurement node 10 to realize, and then realizes high_voltage isolation, improves safety, energy
Work substantially reduces the excessively high caused related accidents of temperature, improves in the various severe applications such as strong magnetic, forceful electric power, dust
The stability of electric system, economic results in society with higher；
In addition, id information is had cured for each temperature measurement node 10, in multiple temperature measurement nodes 10 simultaneously in use, believing using the ID
Breath can effectively distinguish temperature measured by each temperature measurement node 10.
The above is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all benefits
The equivalent structure or equivalent flow shift made by the utility model specification and accompanying drawing content, is applied directly or indirectly in it
His relevant technical field, is also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of temperature measurement system characterized by comprising
Several temperature measurement nodes and a system host；
The temperature measurement node includes the RF receiving circuit, booster circuit and control circuit being sequentially connected in series, and the radio frequency connects
It receives circuit, booster circuit and control circuit to be grounded, the temperature measurement node further includes that one end is electrically connected to RF receiving circuit
Between booster circuit, the storage capacitor of other end ground connection, the RF receiving circuit is electrically connected with for receiving external emission
Radiofrequency signal first antenna, the control circuit is electrically connected with temperature sensor for measuring temperature and for that will measure
To temperature information be sent to the second antenna of external host, the control circuit solidification has id information；
The system host provides the radiofrequency signal of electric energy conversion for each temperature measurement node, and receives each temperature measurement node transmitting
The data packet including temperature information and id information.
2. temperature measurement system according to claim 1, it is characterised in that:
The system host includes being electrically connected with control module for uploading it by the data packet that the second antenna receives
To the WIFI module of cloud server.
3. temperature measurement system according to claim 2, it is characterised in that:
The temperature measurement system includes the cloud server for being connected with wireless router, is uploaded for storing the system host
Data packet check and assign online configuration-direct for personal terminal.
4. temperature measurement system according to claim 1, it is characterised in that:
The system host includes control module and is electrically connected respectively with control module: being connected with external power source for being control
Molding block provides the power module of operating voltage, the first antenna for emitting radiofrequency signal, sends for receiving temperature measurement node
Data packet the second antenna and display module for showing information included by data packet.
5. temperature measurement system according to claim 4, it is characterised in that:
The first antenna of the system host is identical with the first antenna frequency of temperature measurement node, the second antenna of the system host
It is identical with the second antenna frequencies of temperature measurement node.
6. temperature measurement system according to claim 5, it is characterised in that:
The first antenna of the system host is different with the frequency of the second antenna.
7. temperature measurement system according to claim 6, it is characterised in that:
The communication frequency of the first antenna of the system host be 915MHz, the second antenna communication frequency be 2.44GHz.
8. temperature measurement system according to claim 4, it is characterised in that:
The display module is made of the multiple charactrons for corresponding to temperature measurement node quantity, one temperature measurement node of each numeral method
The temperature information of measurement；
Alternatively, the display module is a display screen, the display area of corresponding temperature measurement node quantity is divided on display screen, often
A display area shows the temperature information of temperature measurement node measurement.
9. temperature measurement system according to claim 1, it is characterised in that:
Booster circuit includes that the sluggishness being sequentially connected in series between RF receiving circuit and control circuit compares in the temperature measurement node
Device unit and boosting unit, when the pressure difference at the storage capacitor both ends reaches the first threshold value of hysteresis comparator unit, institute
Boosting unit work and output services voltage are stated to control circuit, and the pressure difference at the storage capacitor both ends drops to sluggish ratio
Compared with device unit the second threshold value when, the boosting unit stops working and stops output services voltage to control circuit.
10. temperature measurement system according to claim 1, it is characterised in that:
RF receiving circuit, booster circuit, control circuit, storage capacitor, first antenna, the second antenna in the temperature measurement node
And temperature sensor is often integrated on same pcb board；
The temperature measurement node further includes the cylindrical body of both ends perforation, and the cylindrical body is by shell and in heating conduction
Shell is constituted, and the pcb board is fixedly arranged in cylindrical body, and the temperature sensor fits in inner casing setting, the first antenna
It is software material with the second antenna and is pasted on inside cylindrical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820783434.7U CN208488178U (en) | 2018-05-24 | 2018-05-24 | Temperature measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820783434.7U CN208488178U (en) | 2018-05-24 | 2018-05-24 | Temperature measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208488178U true CN208488178U (en) | 2019-02-12 |
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ID=65250065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820783434.7U Active CN208488178U (en) | 2018-05-24 | 2018-05-24 | Temperature measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208488178U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990919A (en) * | 2019-03-22 | 2019-07-09 | 贵州电网有限责任公司 | A kind of looped network cabinet intelligent temp measuring system and method |
| CN110426132A (en) * | 2019-09-18 | 2019-11-08 | 杭州安廷电力科技有限公司 | Passive wireless temperature measuring device of switch cabinet |
| CN111337139A (en) * | 2020-03-24 | 2020-06-26 | 深圳市云之上科技有限公司 | Temperature measuring device and method for measuring temperature |
-
2018
- 2018-05-24 CN CN201820783434.7U patent/CN208488178U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990919A (en) * | 2019-03-22 | 2019-07-09 | 贵州电网有限责任公司 | A kind of looped network cabinet intelligent temp measuring system and method |
| CN110426132A (en) * | 2019-09-18 | 2019-11-08 | 杭州安廷电力科技有限公司 | Passive wireless temperature measuring device of switch cabinet |
| CN111337139A (en) * | 2020-03-24 | 2020-06-26 | 深圳市云之上科技有限公司 | Temperature measuring device and method for measuring temperature |
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Address after: 528400 4 cards, 2 / F, building 17, No. 22, Changyi Road, changmingshui village, Wuguishan, Zhongshan, Guangdong Province Patentee after: Guangdong Saisi General Information Technology Co., Ltd Address before: 528400 Guangdong province Zhongshan City Avenue, Torch Development Zone, Zhongshan port No. 99 Jinsheng Plaza No. 1 commercial building room 910 Patentee before: ZHONGSHAN SASP ELECTRONIC TECHNOLOGY Co.,Ltd. |