CN105825676A - Road vehicle running monitoring system based on Internet of things - Google Patents
Road vehicle running monitoring system based on Internet of things Download PDFInfo
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- CN105825676A CN105825676A CN201610357451.XA CN201610357451A CN105825676A CN 105825676 A CN105825676 A CN 105825676A CN 201610357451 A CN201610357451 A CN 201610357451A CN 105825676 A CN105825676 A CN 105825676A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
- H03F3/16—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only with field-effect devices
Abstract
The invention relates to a road vehicle running monitoring system based on the Internet of things, comprising a monitoring center, a detection unit, a wireless communication unit, and a protection alarm unit, wherein the detection unit, the wireless communication unit and the protection alarm unit are electrically connected with the monitoring center. According to the road vehicle running monitoring system based on the Internet of things, an ultrasonic detector ultrasonically senses passing vehicles, an electromagnetic coil is added to electromagnetically sense high-speed vehicles so as to ensure reliable response to vehicles, and the monitoring ability of the monitoring system is improved. In a signal amplification circuit, the output signal is fed back by a feedback circuit composed of a seventh resistor and a fifth capacitor to change the voltage division value of an adjustable resistor, so that the amplification factor of a primary signal amplification circuit mainly composed of a field effect transistor is controlled, the reliability of signal amplification is improved, and the reliability of the monitoring system is improved.
Description
Technical field
The present invention relates to a kind of road vehicles based on Internet of Things and travel monitoring system.
Background technology
Along with improving constantly of modern science and technology level, the monitoring system of various advanced persons the most constantly occurs, in existing preventing road monitoring system, also has a set of road pavement vehicle to travel the system of monitoring.
In this vehicle travels monitoring system, be generally only employing ultrasonic detector to detect the vehicle in front, shot by photographic head subsequently and follow the trail of, and if the speed of automobile is sufficiently fast, often it is not easy to photograph, thus reduces the monitoring capacity of system；Moreover, when main frame is to the signals collecting of detection, it is typically necessary and is amplified processing to signal by signal amplification circuit, ensure the reliability of signals collecting, and owing to current signal amplification circuit can be because signal amplifies too much, thus cause the distortion of signal, reduce the reliability of system.
Summary of the invention
The technical problem to be solved in the present invention is: in order to overcome the deficiencies in the prior art, it is provided that a kind of road vehicles based on Internet of Things travels monitoring system.
The technical solution adopted for the present invention to solve the technical problems is: a kind of road vehicles based on Internet of Things travels monitoring system; including Surveillance center, detector unit, radio communication unit and protection alarm unit, described detector unit, radio communication unit and protection alarm unit all electrically connect with Surveillance center；
Described detector unit includes that solenoid, pressure transducer, ultrasonic detector and high-definition camera, described solenoid, pressure transducer, ultrasonic detector and high-definition camera are all connected with Surveillance center；
Described radio communication unit includes bluetooth and wireless communication terminal, and described Surveillance center is connected with wireless communication terminal by bluetooth；
Described protection alarm unit includes that audible-visual annunciator, temperature sensor, humidity sensor, current transformer and voltage transformer, described audible-visual annunciator, temperature sensor, humidity sensor, current transformer and voltage transformer all electrically connect with Surveillance center；
Described Surveillance center includes that Communication Gateway, Short Message Service Gateway, database server and the Web server that main frame is connected with main frame, described detector unit, radio communication unit and protection alarm unit all electrically connect with main frame；
nullDescribed main frame is provided with signal amplification module，Described detector unit electrically connects with signal amplification module，Described signal amplification module includes signal amplification circuit，Described signal amplification circuit includes the first electric capacity、Second electric capacity、3rd electric capacity、4th electric capacity、5th electric capacity、6th electric capacity、First resistance、Second resistance、3rd resistance、4th resistance、5th resistance、6th resistance、7th resistance、Field effect transistor、First audion and adjustable resistance，The grid of described field effect transistor and the first electric capacity connect，The grid of described field effect transistor passes through the first resistance eutral grounding，The drain electrode of described field effect transistor is by adjustable resistance ground connection，The source electrode of described field effect transistor passes through the second resistance external 5V DC voltage power supply，The source electrode of described field effect transistor is connected by the base stage of the second electric capacity and the first audion，The source electrode of described field effect transistor is by the second electric capacity and the series circuit external 5V DC voltage power supply of the 3rd resistance composition，The source electrode of described field effect transistor is by the second electric capacity and the series circuit ground connection of the 4th resistance composition，The emitter stage of described first audion is by the 6th resistance and the series circuit ground connection of the 3rd electric capacity composition，The colelctor electrode of described first audion passes through the 5th resistance external 5V DC voltage power supply，The colelctor electrode of described first audion is connected with the adjustable end of adjustable resistance by the series circuit of the 7th resistance and the 5th electric capacity composition，The colelctor electrode of described first audion and the 4th electric capacity connect.
As preferably, the installation mode of connection of two-wire system pressure transducer is simple, thus improves the practicality of system, and described pressure transducer is two-wire system pressure transducer.
As preferably, trifluoro lithium battery has the advantages that capacity is big, thus ensure that the sustainable ability to work of ultrasonic detector, is provided with accumulator in described ultrasonic detector, and described accumulator is trifluoro lithium battery.
As preferably, Radix Rumicis high-definition camera has the advantages that shooting angle is wide, thus improves the reliability of system, and described high-definition camera is Radix Rumicis high-definition camera.
As preferably, described main frame is PLC.
As preferably, described temperature sensor is contact type temperature sensor.
As preferably, the hygroscopic precision of resistance-type lithium chloride is high and low price, improves the practical value of system, and described humidity sensor is resistance-type lithium chloride drimeter.
nullAs preferably，Adjustable end at integrated circuit adds a padded voltage，Achieve output voltage continuously adjustabe，It is achieved thereby that the practicality of working power module，Wherein，The magnitude of voltage of output voltage is equal to the fixing output voltage values of integrated circuit and the magnitude of voltage of the base terminal of the second audion，The magnitude of voltage of the base terminal of the second audion then is capable of changing by the resistance changing the 9th resistance，Working power module it is provided with in described main frame，Described working power module includes working power circuit，Described working power circuit includes integrated circuit、First diode、Second diode、Second audion、8th resistance、9th resistance、6th electric capacity and the 7th electric capacity，The model of described integrated circuit is 7800，The input of described integrated circuit passes through the 6th capacity earth，The input of described integrated circuit and the negative electrode of the first diode connect，The outfan of described integrated circuit and the anode of the first diode connect，The outfan of described integrated circuit is by the 8th resistance and the series circuit ground connection of the 9th resistance composition，The grounded collector of described second audion，The base stage of described second audion is connected with the 8th resistance and the 9th resistance respectively，The emitter stage of described second audion is connected with the adjustable end of integrated circuit，The outfan of described integrated circuit and the negative electrode of the second diode connect，The anode of described second diode is connected with the 8th resistance and the 9th resistance respectively，The outfan of described integrated circuit passes through the 7th capacity earth.
The invention has the beneficial effects as follows, should travel in monitoring system by road vehicles based on Internet of Things, by ultrasonic detector, the vehicle of process is carried out ultrasonic sensing, it is simultaneously introduced solenoid, for fireballing vehicle is carried out electromagnetic induction, to ensure the reliability to vehicle response, improve the monitoring capacity of monitoring system；Moreover, in signal amplification circuit, output signal is fed back by the feedback circuit consisted of the 7th resistance and the 5th electric capacity, change the partial pressure value of adjustable resistance, thus control the one stage signal amplifying circuit amplification based on field effect transistor, improve the reliability that signal amplifies, improve the reliability of monitoring system.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of road vehicles based on the Internet of Things traveling monitoring system of the present invention；
Fig. 2 is the structural representation of the Surveillance center of road vehicles based on the Internet of Things traveling monitoring system of the present invention；
Fig. 3 is the circuit theory diagrams of the signal amplification circuit of road vehicles based on the Internet of Things traveling monitoring system of the present invention；
Fig. 4 is the circuit theory diagrams of the working power circuit of road vehicles based on the Internet of Things traveling monitoring system of the present invention；
nullIn figure: 1. solenoid，2. pressure transducer，3. ultrasonic detector，4. high-definition camera，5. wireless communication terminal，6. bluetooth，7. Surveillance center，8. audible-visual annunciator，9. temperature sensor，10. humidity sensor，11. current transformers，12. voltage transformers，13. main frames，14. Communication Gateways，15. Short Message Service Gateway，16. database servers，17.Web server，U1. integrated circuit，R1. the first resistance，R2. the second resistance，R3. the 3rd resistance，R4. the 4th resistance，R5. the 5th resistance，R6. the 6th resistance，R7. the 7th resistance，R8. the 8th resistance，R9. the 9th resistance，RP1. adjustable resistance，D1. the first diode，D2. the second diode，Q1. field effect transistor，Q2. the first audion，Q3. the second audion，C1. the first electric capacity，C2. the second electric capacity，C3. the 3rd electric capacity，C4. the 4th electric capacity，C5. the 5th electric capacity，C6. the 6th electric capacity，C7. the 7th electric capacity.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, and the basic structure of the present invention is described the most in a schematic way, and therefore it only shows the composition relevant with the present invention.
As Figure 1-Figure 4; a kind of road vehicles based on Internet of Things travels monitoring system; including Surveillance center 7, detector unit, radio communication unit and protection alarm unit, described detector unit, radio communication unit and protection alarm unit all electrically connect with Surveillance center 7；
Described detector unit includes that solenoid 1, pressure transducer 2, ultrasonic detector 3 and high-definition camera 4, described solenoid 1, pressure transducer 2, ultrasonic detector 3 and high-definition camera 4 are all connected with Surveillance center 7；
Described radio communication unit includes that bluetooth 6 and wireless communication terminal 5, described Surveillance center 7 are connected with wireless communication terminal 5 by bluetooth 6；
Described protection alarm unit includes that audible-visual annunciator 8, temperature sensor 9, humidity sensor 10, current transformer 11 and voltage transformer 12, described audible-visual annunciator 8, temperature sensor 9, humidity sensor 10, current transformer 11 and voltage transformer 12 all electrically connect with Surveillance center 7；
Described Surveillance center 7 includes Communication Gateway 14, Short Message Service Gateway 15, database server 16 and the Web server 17 that main frame 13 is connected with main frame 13, and described detector unit, radio communication unit and protection alarm unit all electrically connect with main frame 13；
nullDescribed main frame 13 is provided with signal amplification module，Described detector unit electrically connects with signal amplification module，Described signal amplification module includes signal amplification circuit，Described signal amplification circuit includes the first electric capacity C1、Second electric capacity C2、3rd electric capacity C3、4th electric capacity C4、5th electric capacity C5、6th electric capacity C6、First resistance R1、Second resistance R2、3rd resistance R3、4th resistance R4、5th resistance R5、6th resistance R6、7th resistance R7、Field effect transistor Q1、First audion Q2 and adjustable resistance RP1，The grid of described field effect transistor Q1 and the first electric capacity C1 connect，The grid of described field effect transistor Q1 passes through the first resistance R1 ground connection，The drain electrode of described field effect transistor Q1 is by adjustable resistance RP1 ground connection，The source electrode of described field effect transistor Q1 passes through the second resistance R2 external 5V DC voltage power supply，The source electrode of described field effect transistor Q1 is connected by the base stage of the second electric capacity C2 and the first audion Q2，The source electrode of described field effect transistor Q1 is by the series circuit external 5V DC voltage power supply of the second electric capacity C2 and the 3rd resistance R3 composition，The source electrode of described field effect transistor Q1 is by the series circuit ground connection of the second electric capacity C2 and the 4th resistance R4 composition，The emitter stage of described first audion Q2 is by the series circuit ground connection of the 6th resistance R6 and the 3rd electric capacity C3 composition，The colelctor electrode of described first audion Q2 passes through the 5th resistance R5 external 5V DC voltage power supply，The colelctor electrode of described first audion Q2 is connected with the adjustable end of adjustable resistance RP1 by the series circuit of the 7th resistance R7 and the 5th electric capacity C5 composition，The colelctor electrode of described first audion Q2 and the 4th electric capacity C4 connect.
As preferably, the installation mode of connection of two-wire system pressure transducer is simple, thus improves the practicality of system, and described pressure transducer 2 is two-wire system pressure transducer.
As preferably, trifluoro lithium battery has the advantages that capacity is big, thus ensure that the sustainable ability to work of ultrasonic detector 3, is provided with accumulator in described ultrasonic detector 3, and described accumulator is trifluoro lithium battery.
As preferably, Radix Rumicis high-definition camera has the advantages that shooting angle is wide, thus improves the reliability of system, and described high-definition camera 4 is Radix Rumicis high-definition camera.
As preferably, described main frame 13 is PLC.
As preferably, described temperature sensor 9 is contact type temperature sensor.
As preferably, the hygroscopic precision of resistance-type lithium chloride is high and low price, improves the practical value of system, and described humidity sensor 10 is resistance-type lithium chloride drimeter.
nullAs preferably，Adjustable end at integrated circuit U1 adds a padded voltage，Achieve output voltage continuously adjustabe，It is achieved thereby that the practicality of working power module，Wherein，The magnitude of voltage of output voltage is equal to the fixing output voltage values of integrated circuit U1 and the magnitude of voltage of the base terminal of the second audion Q3，The magnitude of voltage of the base terminal of the second audion Q3 then is capable of changing by the resistance changing the 9th resistance R9，It is provided with working power module in described main frame 13，Described working power module includes working power circuit，Described working power circuit includes integrated circuit U1、First diode D1、Second diode D2、Second audion Q3、8th resistance R8、9th resistance R9、6th electric capacity C6 and the 7th electric capacity C7，The model of described integrated circuit U1 is 7800，The input of described integrated circuit U1 passes through the 6th electric capacity C6 ground connection，The input of described integrated circuit U1 and the negative electrode of the first diode D1 connect，The outfan of described integrated circuit U1 and the anode of the first diode D1 connect，The outfan of described integrated circuit U1 is by the series circuit ground connection of the 8th resistance R8 and the 9th resistance R9 composition，The grounded collector of described second audion Q3，The base stage of described second audion Q3 is connected with the 8th resistance R8 and the 9th resistance R9 respectively，The described emitter stage of the second audion Q3 is connected with the adjustable end of integrated circuit U1，The outfan of described integrated circuit U1 and the negative electrode of the second diode D2 connect，The anode of described second diode D2 is connected with the 8th resistance R8 and the 9th resistance R9 respectively，The outfan of described integrated circuit U1 passes through the 7th electric capacity C7 ground connection.
Should travel in monitoring system by road vehicles based on Internet of Things:
Surveillance center 7, for being controlled unit, improves the intellectuality of system.Wherein, main frame 13 is used for controlling modules, it is ensured that system properly functioning；Communication Gateway 14 is used for realizing communication and connects, it is ensured that the reliability of the network communication of system；Short Message Service Gateway 15 is used for carrying out short message prompt, it is ensured that the safety travelling car owner；Database server 16, for systems with data service, improves the reliability of system；Web server 17 is used for providing the user with Web service, it is possible to the travel situations of oneself is understood by user in real time, thus improves the practicality of system.
Detector unit detects for road pavement workshop.Wherein, solenoid 1 is positioned over ground, for the vehicle of process is carried out electromagnetic induction, to ensure to carry out vehicle Fast Time Response；Pressure transducer 2, for carrying out weight detecting to the vehicle of process；Ultrasonic detector 3, for the vehicle of process being carried out ultrasonic sensing by ultrasound wave, further increases the response of the tracking to vehicle；High-definition camera 4 is for carrying out video monitoring to the vehicle of process.
Protection alarm unit is for monitoring in real time the working environment of Surveillance center 7, thus improves the reliability of system.Wherein, audible-visual annunciator 8 is used for carrying out sound and light alarm, thus improves the reliability of system；Temperature sensor 9 is for detecting in real time the temperature of each equipment of Surveillance center 7, thus ensures that Surveillance center 7 each several part working environment is reliable；Humidity sensor 10 is for detecting in real time the humidity of Surveillance center 7 each several part, thus ensures that each equipment working environment of Surveillance center 7 is reliable；Current transformer 11 is for detecting in real time the operating current of each equipment in Surveillance center 7, thus ensure that the reliability that each equipment works；Voltage transformer 12 is for detecting in real time the running voltage of each equipment in Surveillance center 7, thus ensure that the reliability that each equipment works.
Should travel in monitoring system by road vehicles based on Internet of Things, signal amplification module, for reliably amplifying the detection signal of detector unit, improves the reliability of system.Wherein, in signal amplification circuit, by carrying out signal amplification based on the one stage signal amplifying circuit of field effect transistor Q1, then the second signal amplifying circuit being main through the first audion Q2 carries out signal amplification, thus ensure that the amplification of detection signal.Simultaneously, output signal is fed back by the feedback circuit consisted of the 7th resistance R7 and the 5th electric capacity C5, control the one stage signal amplifying circuit amplification based on field effect transistor Q1 by the partial pressure value changing adjustable resistance RP1, thus improve the reliability that signal amplifies.
Compared with prior art, should travel in monitoring system by road vehicles based on Internet of Things, by ultrasonic detector 3, the vehicle of process is carried out ultrasonic sensing, it is simultaneously introduced solenoid 1, for fireballing vehicle is carried out electromagnetic induction, to ensure the reliability to vehicle response, improve the monitoring capacity of monitoring system；Moreover, in signal amplification circuit, output signal is fed back by the feedback circuit consisted of the 7th resistance R7 and the 5th electric capacity C5, change the partial pressure value of adjustable resistance RP1, thus control the one stage signal amplifying circuit amplification based on field effect transistor Q1, improve the reliability that signal amplifies, improve the reliability of monitoring system.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff can carry out various change and amendment completely in the range of without departing from this invention technological thought.The content that the technical scope of this invention is not limited in description, it is necessary to determine its technical scope according to right.
Claims (8)
1. a road vehicles based on Internet of Things travels monitoring system; it is characterized in that; including Surveillance center (7), detector unit, radio communication unit and protection alarm unit, described detector unit, radio communication unit and protection alarm unit all electrically connect with Surveillance center (7)；
Described detector unit includes that solenoid (1), pressure transducer (2), ultrasonic detector (3) and high-definition camera (4), described solenoid (1), pressure transducer (2), ultrasonic detector (3) and high-definition camera (4) are all connected with Surveillance center (7)；
Described radio communication unit includes bluetooth (6) and wireless communication terminal (5), and described Surveillance center (7) is connected with wireless communication terminal (5) by bluetooth (6)；
Described protection alarm unit includes that audible-visual annunciator (8), temperature sensor (9), humidity sensor (10), current transformer (11) and voltage transformer (12), described audible-visual annunciator (8), temperature sensor (9), humidity sensor (10), current transformer (11) and voltage transformer (12) all electrically connect with Surveillance center (7)；
Described Surveillance center (7) includes Communication Gateway (14), Short Message Service Gateway (15), database server (16) and the Web server (17) that main frame (13) is connected with main frame (13), and described detector unit, radio communication unit and protection alarm unit all electrically connect with main frame (13)；
nullDescribed main frame is provided with signal amplification module in (13)，Described detector unit electrically connects with signal amplification module，Described signal amplification module includes signal amplification circuit，Described signal amplification circuit includes the first electric capacity (C1)、Second electric capacity (C2)、3rd electric capacity (C3)、4th electric capacity (C4)、5th electric capacity (C5)、6th electric capacity (C6)、First resistance (R1)、Second resistance (R2)、3rd resistance (R3)、4th resistance (R4)、5th resistance (R5)、6th resistance (R6)、7th resistance (R7)、Field effect transistor (Q1)、First audion (Q2) and adjustable resistance (RP1)，The grid of described field effect transistor (Q1) and the first electric capacity (C1) connect，The grid of described field effect transistor (Q1) passes through the first resistance (R1) ground connection，The drain electrode of described field effect transistor (Q1) is by adjustable resistance (RP1) ground connection，The source electrode of described field effect transistor (Q1) passes through the second resistance (R2) external 5V DC voltage power supply，The source electrode of described field effect transistor (Q1) is connected with the base stage of the first audion (Q2) by the second electric capacity (C2)，The series circuit external 5V DC voltage power supply that the source electrode of described field effect transistor (Q1) consists of the second electric capacity (C2) and the 3rd resistance (R3)，The series circuit ground connection that the source electrode of described field effect transistor (Q1) consists of the second electric capacity (C2) and the 4th resistance (R4)，The series circuit ground connection that the emitter stage of described first audion (Q2) consists of the 6th resistance (R6) and the 3rd electric capacity (C3)，The colelctor electrode of described first audion (Q2) passes through the 5th resistance (R5) external 5V DC voltage power supply，The series circuit that the colelctor electrode of described first audion (Q2) consists of the 7th resistance (R7) and the 5th electric capacity (C5) is connected with the adjustable end of adjustable resistance (RP1)，The colelctor electrode of described first audion (Q2) and the 4th electric capacity (C4) connect.
2. road vehicles based on Internet of Things as claimed in claim 1 travels monitoring system, it is characterised in that described pressure transducer (2) is two-wire system pressure transducer.
3. road vehicles based on Internet of Things as claimed in claim 1 travels monitoring system, it is characterised in that being provided with accumulator in described ultrasonic detector (3), described accumulator is trifluoro lithium battery.
4. road vehicles based on Internet of Things as claimed in claim 1 travels monitoring system, it is characterised in that described high-definition camera (4) is Radix Rumicis high-definition camera.
5. road vehicles based on Internet of Things as claimed in claim 1 travels monitoring system, it is characterised in that described main frame (13) is PLC.
6. road vehicles based on Internet of Things as claimed in claim 1 travels monitoring system, it is characterised in that described temperature sensor (9) is contact type temperature sensor.
7. road vehicles based on Internet of Things as claimed in claim 1 travels monitoring system, it is characterised in that described humidity sensor (10) is resistance-type lithium chloride drimeter.
null8. road vehicles based on Internet of Things as claimed in claim 1 travels monitoring system，It is characterized in that，Described main frame is provided with working power module in (13)，Described working power module includes working power circuit，Described working power circuit includes integrated circuit (U1)、First diode (D1)、Second diode (D2)、Second audion (Q3)、8th resistance (R8)、9th resistance (R9)、6th electric capacity (C6) and the 7th electric capacity (C7)，The model of described integrated circuit (U1) is 7800，The input of described integrated circuit (U1) passes through the 6th electric capacity (C6) ground connection，The input of described integrated circuit (U1) and the negative electrode of the first diode (D1) connect，The outfan of described integrated circuit (U1) and the anode of the first diode (D1) connect，The series circuit ground connection that the outfan of described integrated circuit (U1) consists of the 8th resistance (R8) and the 9th resistance (R9)，The grounded collector of described second audion (Q3)，The base stage of described second audion (Q3) is connected with the 8th resistance (R8) and the 9th resistance (R9) respectively，The emitter stage of described second audion (Q3) is connected with the adjustable end of integrated circuit (U1)，The outfan of described integrated circuit (U1) and the negative electrode of the second diode (D2) connect，The anode of described second diode (D2) is connected with the 8th resistance (R8) and the 9th resistance (R9) respectively，The outfan of described integrated circuit (U1) passes through the 7th electric capacity (C7) ground connection.
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| CN204463429U (en) * | 2015-02-28 | 2015-07-08 | 万源市清阳科技有限公司 | For the vehicle monitoring system of highway |
| CN104816596B (en) * | 2015-05-16 | 2015-12-09 | 江阴众和电力仪表有限公司 | Based on the car data shared system of radio communication |
| CN204946351U (en) * | 2015-08-28 | 2016-01-06 | 华侨大学 | Based on the vehicle flow detection system that monitoring image is analyzed |
| CN205121887U (en) * | 2015-10-20 | 2016-03-30 | 昆明理工大学 | Ultrasonic wave vehicle route monitoring devices based on it is embedded in real time |
-
2016
- 2016-05-26 CN CN201610357451.XA patent/CN105825676B/en not_active Expired - Fee Related
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| CN106405847A (en) * | 2016-09-20 | 2017-02-15 | 深圳市奈士迪技术研发有限公司 | Photograph viewer for medical imaging |
| CN106657324A (en) * | 2016-12-17 | 2017-05-10 | 深圳市索菱实业股份有限公司 | Vehicle network cloud communication system |
| CN106793614A (en) * | 2016-12-17 | 2017-05-31 | 深圳市索菱实业股份有限公司 | A kind of control platform of mobile phone and car networking |
| CN107199900A (en) * | 2017-05-23 | 2017-09-26 | 南安市达腾商务服务有限公司 | A kind of wind-proof intelligent charging spot |
| CN107199900B (en) * | 2017-05-23 | 2020-04-17 | 嘉兴智行物联网技术有限公司 | Windproof intelligent charging pile |
| CN108096972A (en) * | 2017-12-23 | 2018-06-01 | 江苏康洁环境工程有限公司 | The dust pelletizing system of removing sulfurous gas and heavy metal dusts based on Internet of Things |
| CN108762180A (en) * | 2018-07-10 | 2018-11-06 | 合肥硕森科技有限公司 | A kind of reaction kettle safety control based on computer control |
| CN110033619A (en) * | 2019-04-23 | 2019-07-19 | 临沂大学 | A kind of Freeway Conditions detection method and its system |
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