CN213091039U - Wireless pressure sensor with intelligent power supply device - Google Patents
Wireless pressure sensor with intelligent power supply device Download PDFInfo
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- CN213091039U CN213091039U CN202022048312.3U CN202022048312U CN213091039U CN 213091039 U CN213091039 U CN 213091039U CN 202022048312 U CN202022048312 U CN 202022048312U CN 213091039 U CN213091039 U CN 213091039U
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- 238000001514 detection method Methods 0.000 claims abstract description 44
- 230000001681 protective effect Effects 0.000 claims description 30
- 238000004134 energy conservation Methods 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 238000004891 communication Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000035772 mutation Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013523 data management Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The application discloses wireless pressure sensor with intelligence power supply unit, it relates to wireless pressure sensor's technical field, including organism and intelligent power supply circuit, intelligent power supply circuit includes: the detection circuit is connected with a direct current power supply VCC to detect the road surface pressure and output a detection signal; the judging circuit is connected with a direct current power supply VCC, and the input end of the judging circuit is connected with the output end of the detecting circuit and used for comparing the detection signal with a preset threshold value and outputting a judging signal; and the control circuit is connected with the direct-current power supply VCC, the input end of the control circuit is connected with the output end of the judging circuit, the output end of the control circuit is connected with the organism, and the control circuit responds to the judging signal to control the opening and closing of the organism. When no person passes through the road surface, the wireless pressure sensor stops working and is in a dormant state, so that the total power consumption of the wireless pressure sensor P is reduced, and the aims of energy conservation and environmental protection are fulfilled.
Description
Technical Field
The application relates to the technical field of wireless pressure sensors, in particular to a wireless pressure sensor with an intelligent power supply device.
Background
At present, a wireless sensor is a wireless data communication collector integrating functions of data acquisition, data management, data communication and the like, is visible everywhere in the current production and life, and has a plurality of types including a wireless temperature sensor, a wireless pressure sensor, a wireless liquid level sensor and the like, wherein the wireless pressure sensor is relatively common. The wireless pressure sensor is an intelligent pressure measuring instrument with wireless communication function and high precision, and is widely applied to industries such as petroleum, electric power, metallurgy and the like, for example, in the electric power industry, the wireless pressure sensor can be applied to a street lamp monitoring system.
The related art can refer to chinese patent with publication number CN206159976U, it discloses a street lamp intelligent control device based on pressure sensor, it includes base and light pole, the base level sets up, the vertical setting of light pole, base top and light pole bottom fixed connection, base both ends fixedly connected with first wireless pressure sensor and second wireless pressure sensor, first wireless pressure sensor and second wireless pressure sensor are all fixed mounting on the road surface, first wireless pressure sensor and second wireless pressure sensor pass through wireless mode and connect in computer system, and first pressure sensor and second pressure sensor all insert the commercial power, the light pole top is provided with the bulb, bulb and light pole top threaded connection. When people step on the first pressure sensor or the second pressure sensor, the first wireless pressure sensor or the second wireless pressure sensor can sense pressure and transmit a signal to the computer system, and the computer system controls the street lamp to be lighted after receiving the signal.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the first wireless pressure sensor and the second wireless pressure sensor do not detect signals, the wireless pressure sensors work with normal power consumption, and the total power consumption of the first wireless pressure sensor and the second wireless pressure sensor is large, so that the waste of power energy is caused, and the environment is not protected.
SUMMERY OF THE UTILITY MODEL
In order to reduce the total power consumption of the wireless pressure sensor and realize energy conservation and environmental protection, the application provides the wireless pressure sensor with the intelligent power supply device.
The application provides a wireless pressure sensor with intelligent power supply unit adopts following technical scheme:
the utility model provides a wireless pressure sensor with intelligence power supply unit, includes the organism of accurate detection pressure size and is used for the intelligent power supply circuit for the organism power supply, intelligent power supply circuit includes:
the detection circuit is connected with a direct current power supply VCC to detect the road surface pressure and output a detection signal;
the judging circuit is connected with a direct-current power supply VCC, and the input end of the judging circuit is connected with the output end of the detecting circuit and used for comparing the value corresponding to the detection signal with the preset threshold value and outputting the judging signal; and
the control circuit is connected to the direct-current power supply VCC, the input end of the control circuit is connected to the output end of the judging circuit, the output end of the control circuit is connected with the machine body, and the control circuit responds to the judging signal to control the start and stop of the machine body.
By adopting the technical scheme, the detection circuit 1 is used for roughly detecting the pressure, so that whether the machine body is awakened or not is determined, the detection circuit detects the pressure applied to the current road surface and outputs a detection signal, the judgment circuit receives the detection signal, then the preset threshold value is compared with the detection signal, when the voltage value of the detection signal is smaller than the preset threshold value, the situation that no person passes through the road surface at the moment is indicated, the road surface is not pressurized, the judgment circuit outputs the judgment signal obtained by judgment to the control circuit, the control circuit controls the machine body to stop working and be in a dormant state, the power consumption of the wireless pressure sensor in the dormant state is small, the total power consumption of the machine body is reduced, and the purposes of energy conservation and environmental protection.
Preferably, the detection circuit includes a force-sensitive resistor Rp, one end of the force-sensitive resistor Rp is connected to the dc power VCC, and the other end of the force-sensitive resistor Rp is connected to the input end of the determination circuit.
By adopting the technical scheme, the force-sensitive resistor Rp is a variable resistor, the resistance value of the force-sensitive resistor Rp is reduced along with the increase of the pressure applied to the force-sensitive resistor Rp, and the voltage at the two ends of the force-sensitive resistor Rp is reduced, so that the function of detecting whether the ground is stressed is achieved.
Preferably, the determination circuit includes an NPN-type switching transistor Q1, a base of the switching transistor Q1 is connected to the output terminal of the detection circuit, an emitter of the switching transistor Q1 is grounded, a collector of the switching transistor Q1 is connected to the input terminal of the control circuit, and the switching transistor Q1 is configured to compare a preset threshold with the detection signal.
By adopting the technical scheme, the preset threshold value is the conduction voltage value of the switching triode Q1, and when the voltage value of the detection signal is smaller than the conduction voltage value of the switching triode Q1, the situation that no person passes through the road surface at the moment, the road surface is not stressed, the switching triode Q1 is not conducted, and the control circuit is in a disconnected state, so that the machine body is controlled to stop working and be in a dormant state; when the voltage value of the detection signal is larger than or equal to the conduction voltage value of the switching triode Q1, it is indicated that people pass through the road surface at the moment, the road surface is stressed, the switching triode Q1 is conducted, the control circuit is conducted, so that the machine body is controlled to be awakened and starts to work, and the dormancy and awakening of the machine body are controlled through the switching triode Q1.
Preferably, the control circuit comprises a relay KM, one end of a coil of the relay KM is connected to the output end of the judging circuit, the other end of the coil of the relay KM is connected to a direct-current power supply VCC, a normally open contact of the relay KM is connected to a mains supply, and the machine body and the normally open contact of the relay KM are connected in series in a power supply loop of the mains supply.
By adopting the technical scheme, the relay KM is used as an intermediary for judging the connection between the circuit and the machine body; when the coil of the relay KM is electrified, the normally open contact of the relay KM is closed, and the machine body is in a working state; when the coil of the relay KM is powered off, the normally open contact of the relay KM is disconnected, so that the machine body is controlled to be in a non-working state; the normally open contact of the relay KM is closed and opened, so that the aim of controlling the opening and closing of the machine body is fulfilled; the arrangement of the double power supplies reduces the total power consumption of the machine body, and the purposes of energy conservation and environmental protection are achieved.
Preferably, the relay KM is a power-off delay relay KM.
By adopting the technical scheme, when the control circuit is electrified, the coil of the power-off delay relay KM is conducted, so that the normally open contact of the relay KM is closed, and the machine body is in a working state; when the control circuit is suddenly powered off, the two ends of the coil of the power-off delay relay KM are powered off, but the power-off delay relay KM is still in a working state and simultaneously still controls the machine body to work, and when the sudden change of the control circuit is recovered, the two ends of the coil of the power-off delay relay KM are powered on; in the whole mutation process, the engine body is always in a working state and is not repeatedly opened and closed along with mutation, the engine body is protected, the service life of the engine body is normal, and the mutation resistance of the engine body is improved.
Preferably, a freewheeling diode VD is connected in anti-parallel with the coil of the relay KM.
By adopting the technical scheme, the freewheeling diode VD2 protects the relay KM, and the service life of the relay KM is prolonged.
Preferably, a protective shell is arranged outside the machine body, the protective shell is sleeved outside the machine body, and the protective shell is fixedly connected with the machine body.
By adopting the technical scheme, the machine body is arranged on the road surface, and the protective shell plays a role in protecting the machine body as the protective shell is sleeved on the outer side of the machine body.
Preferably, the protective housing level sets up, and the protective housing is installed in the road surface, and the protective housing top flushes with the road surface, and protective housing top fixedly connected with roof.
By adopting the technical scheme, the machine body is fixed in the protective shell, and then the protective shell is moved and installed in the pavement; the top end of the protective shell is provided with the top plate, the protective shell is hidden in a road surface by the arrangement of the top plate, and when a person passes through the road surface and treads the top plate, the pressure of the top plate is detected by a machine body in the protective shell at the moment; therefore, the detection of whether a person passes by the wireless pressure sensor is realized, and the convenience of detection is improved.
To sum up, the beneficial technical effect of this application does:
1. by adopting the structure of the detection circuit, the judgment circuit and the control circuit, the total power consumption of the machine body is reduced, and the purposes of energy conservation and environmental protection are achieved;
2. the relay KM is protected through the freewheeling diode VD2, and the service life of the relay KM is prolonged;
3. through the arrangement of the protective shell, the purpose of protecting the machine body is achieved.
Drawings
FIG. 1 is a schematic structural diagram of the present application;
fig. 2 is a circuit schematic of the present application.
Description of reference numerals: 1. a detection circuit; 2. a judgment circuit; 3. a control circuit; 5. a body; 6. a protective shell; 7. a top plate; 8. a pavement; 81. and (4) mounting the groove.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
Referring to fig. 1, the wireless pressure sensor with the intelligent power supply device disclosed by the application comprises a machine body 5 and a protective shell 6, wherein the machine body 5 and the protective shell 6 are both horizontally arranged, the protective shell 6 is sleeved on the outer side of the machine body 5, and the protective shell 6 is fixedly connected with the machine body 5; the machine body 5 is arranged on a road surface 8, the road surface 8 is provided with an installation groove 81, the protective shell 6 and the machine body 5 are both positioned in the installation groove 81, the protective shell 6 is fixedly connected with the bottom wall of the installation groove 81, and the top end of the protective shell 6 is flush with the road surface 8; 8 surfaces on road surface set up roof 7, roof 7 and 8 fixed connection on road surface, 6 tops of protecting crust and roof 7 butt.
Referring to fig. 2, the wireless pressure sensor with the intelligent power supply device further comprises an intelligent power supply circuit, the intelligent power supply circuit comprises a detection circuit 1, a judgment circuit 2 and a control circuit 3, the detection circuit 1 is connected with a top plate 7, an output end of the detection circuit 1 is connected with an input end of the judgment circuit 2, an output end of the judgment circuit 2 is connected with an input end of the control circuit 3, an output end of the control circuit 3 is connected with an organism 5, the detection circuit 1 and the control circuit 3 are both connected with a direct current power supply VCC, and the voltage of the direct current power supply VCC is smaller than the voltage of the mains supply; the judgment circuit 2 receives the detection signal output by the detection circuit 1, then compares the detection signal with a preset threshold value, and outputs a judgment signal, and the control circuit 3 responds to the judgment signal to control the opening and closing of the machine body 5.
The detection circuit 1 is used for roughly detecting the pressure so as to decide whether to wake up the machine body 5; if no person passes through the top plate 7, the detection circuit 1 detects that the top plate 7 is not stressed currently, at this time, in the judgment circuit 2, the voltage value of the detection signal is smaller than a preset threshold value, the judgment circuit 2 outputs the judgment signal to the control circuit 3, the control circuit 3 responds to the judgment signal and controls the machine body 5 to stop working and be in a dormant state, and the power consumption of the machine body 5 in the dormant state is small, so that the total power consumption of the machine body 5 is reduced, and the purposes of energy conservation and environmental protection are achieved.
Referring to fig. 2, the detection circuit 1 includes a force sensitive resistor Rp, one end of which is connected to the dc power VCC and the other end of which is connected to the input terminal of the judgment circuit 2; the force-sensitive resistor Rp is a variable resistor, and as the pressure applied to the force-sensitive resistor Rp increases, the resistance thereof decreases, and the voltage at the two ends of the force-sensitive resistor Rp decreases, so that the voltage at the input end of the judgment circuit 2 increases.
Referring to fig. 1 and 2, the determining circuit 2 includes a switching transistor Q1 and a first resistor R1, the switching transistor Q1 is an NPN-type transistor, a base of the switching transistor Q1 is connected to an output terminal of the force-sensitive resistor Rp to receive a detection signal, an emitter of the switching transistor Q1 is grounded, a collector of the switching transistor Q1 is connected to an input terminal of the control circuit 3, one end of the first resistor R1 is connected to a connection node between the base of the switching transistor Q1 and the force-sensitive resistor Rp, and the other end is grounded; the switching transistor Q1 receives the detection signal and compares a predetermined threshold with the detection signal, where the predetermined threshold is the on-state voltage of the switching transistor Q1.
The first resistor R1 and the force-sensitive resistor Rp are connected in series in a power supply loop of the direct-current power supply VCC, the first resistor R1 has a voltage division effect on the force-sensitive resistor Rp, the stress resistance value of the force-sensitive resistor Rp is reduced, the voltage of two ends of the force-sensitive resistor Rp is reduced, the input voltage of the first resistor R1 is increased, and the input voltage of the switching triode Q1 is the input voltage of the first resistor R1; when the voltage value of the detection signal is smaller than a preset threshold value, it is indicated that no person passes through the top plate 7 at the moment, the top plate 7 is not pressed, and the switching triode Q1 is not conducted; when the voltage value of the detection signal is greater than or equal to the preset threshold value, it indicates that a person passes through the top plate 7 at the moment, the top plate 7 is under pressure, the switching triode Q1 is switched on, and the switching triode Q1 outputs the judgment result as a judgment signal.
Referring to fig. 2, the control circuit 3 includes a power-off delay relay KM and a freewheeling diode VD, one end of a coil of the power-off delay relay KM is connected to a collector of a switching triode Q1, the other end is connected to a direct-current power supply VCC, and the coil of the power-off delay relay KM is connected in anti-parallel with the freewheeling diode VD; the normally open contact of the relay KM is connected with the mains supply, and the machine body 5 and the normally open contact of the power-off delay relay KM are connected in series in a power supply loop of the mains supply.
When the power-off delay relay KM is electrified, the normally open contact of the power-off delay relay KM is closed, and the machine body 5 is in a working state; when the power-off delay relay KM is suddenly powered off, the power-off delay relay KM is still in a working state, the machine body 5 always works normally in the process of sudden change recovery, the power-off delay relay KM improves the sudden change resistance of the machine body 5, and meanwhile, the machine body 5 is protected, so that the service life of the machine body 5 is normal; when the power-off delay relay KM is in a formal power-off state, the wireless pressure sensor KM still works, and a normally open contact of the power-off delay relay KM is disconnected until the time of delay is reached, so that the machine body 5 is in a dormant state without working.
The implementation principle of the wireless pressure sensor with the intelligent power supply device is as follows: firstly, when no person passes through the top plate 7, the force-sensitive resistor Rp is kept unchanged, at the moment, in the judging circuit 2, the voltage value of the detection signal is smaller than the preset threshold value, the switching triode Q1 is not conducted, the power-off delay relay KM is not electrified, the normally open contact of the power-off delay relay KM is in a disconnected state, the machine body 5 is in an unoperated dormant state, and the power consumption of the machine body 5 is small at the moment.
When a person passes through the top plate 7, the pressure resistance of the force-sensitive resistor Rp is reduced, the voltage at two ends of the force-sensitive resistor Rp is reduced, at the moment, in the judging circuit 2, the voltage value of the detection signal is equal to or larger than the preset threshold value, the switch triode Q1 is switched on, the power-off delay relay KM is electrified, the normally open contact of the power-off delay relay KM is closed, and the machine body 5 is awakened to start working.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a wireless pressure sensor with intelligence power supply unit which characterized in that: wireless pressure sensor is including organism (5) that are used for accurate detection pressure size and be used for the intelligent power supply circuit for organism (5) power supply, and intelligent power supply circuit includes:
the detection circuit (1) is connected with a direct-current power supply VCC so as to detect the pressure of the road surface (8) and output a detection signal;
the judging circuit (2) is connected to the direct-current power supply VCC, and the input end of the judging circuit (2) is connected to the output end of the detecting circuit (1) and used for comparing a preset threshold value with a detecting signal and outputting a judging signal; and
control circuit (3), connect in DC power supply VCC, the input of control circuit (3) is connected in the output of judging circuit (2), and the output of control circuit (3) is connected in organism (5), and control circuit (3) are opened and close in order to control organism (5) in response to the judgement signal.
2. The wireless pressure sensor with intelligent power supply of claim 1, wherein: the detection circuit (1) comprises a force-sensitive resistor Rp, one end of the force-sensitive resistor Rp is connected to a direct-current power supply VCC, and the other end of the force-sensitive resistor Rp is connected to the input end of the judgment circuit (2).
3. The wireless pressure sensor with intelligent power supply of claim 1, wherein: the judging circuit (2) comprises an NPN type switching triode Q1, the base electrode of the switching triode Q1 is connected to the output end of the detecting circuit (1), the emitting electrode of the switching triode Q1 is grounded, the collecting electrode of the switching triode Q1 is connected to the input end of the control circuit (3), and the switching triode Q1 is used for comparing a preset threshold value with a detecting signal.
4. The wireless pressure sensor with intelligent power supply of claim 1, wherein: control circuit (3) include relay KM, and relay KM coil one end is connected in the output of judging circuit (2), and the other end is connected in direct current power supply VCC, and relay KM's normally open contact inserts the commercial power, and organism (5) and relay KM's normally open contact establish ties in the power supply loop of commercial power.
5. The wireless pressure sensor with intelligent power supply of claim 4, wherein: the relay KM is a power-off delay relay KM.
6. The wireless pressure sensor with intelligent power supply of claim 4, wherein: and a coil of the relay KM is reversely connected with a freewheeling diode VD in parallel.
7. The wireless pressure sensor with intelligent power supply of claim 1, wherein: a protective shell (6) is arranged outside the machine body (5), the protective shell (6) is sleeved on the outer side of the machine body (5), and the protective shell (6) is fixedly connected with the machine body (5).
8. The wireless pressure sensor with intelligent power supply of claim 7, wherein: protective housing (6) level sets up, and protective housing (6) are installed in road surface (8), and protective housing (6) top flushes with road surface (8), and protective housing (6) top fixedly connected with roof (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022048312.3U CN213091039U (en) | 2020-09-17 | 2020-09-17 | Wireless pressure sensor with intelligent power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022048312.3U CN213091039U (en) | 2020-09-17 | 2020-09-17 | Wireless pressure sensor with intelligent power supply device |
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| Publication Number | Publication Date |
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| CN213091039U true CN213091039U (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022048312.3U Expired - Fee Related CN213091039U (en) | 2020-09-17 | 2020-09-17 | Wireless pressure sensor with intelligent power supply device |
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| CN (1) | CN213091039U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113689638A (en) * | 2021-08-06 | 2021-11-23 | 盐城师范学院 | Safe and intelligent swim ring and alarm method |
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2020
- 2020-09-17 CN CN202022048312.3U patent/CN213091039U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113689638A (en) * | 2021-08-06 | 2021-11-23 | 盐城师范学院 | Safe and intelligent swim ring and alarm method |
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Granted publication date: 20210430 |