CN112270835A - Multi-sensor-based vehicle access management control system and control method thereof - Google Patents
Multi-sensor-based vehicle access management control system and control method thereof Download PDFInfo
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- CN112270835A CN112270835A CN202010911835.8A CN202010911835A CN112270835A CN 112270835 A CN112270835 A CN 112270835A CN 202010911835 A CN202010911835 A CN 202010911835A CN 112270835 A CN112270835 A CN 112270835A
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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
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
- G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/30—Individual registration on entry or exit not involving the use of a pass
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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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Abstract
The invention discloses a vehicle access management control system based on multiple sensors and a control method thereof, wherein the vehicle access management control system comprises the following steps: the system comprises a geomagnetic induction module, an infrared sensing module, a signal processing module, digital-to-analog conversion, a wireless transmission module and a driving module, wherein the geomagnetic induction module judges whether a vehicle enters or not through sensing magnetic field conversion of receiving and transmitting; the infrared sensing module is used for pre-judging the position of the vehicle under the operation of the geomagnetic sensing module, so that the passing rate of the vehicle is improved; the signal processing module performs intermediate modulation on the signals detected by the induction sensor to complete stable transmission of the detection signals; the digital-to-analog conversion converts continuous analog signals obtained by detection into discrete digital signals to complete the conversion of the signals; the wireless transmission module receives and transmits wireless signals under the signal adjustment of digital-to-analog conversion; the driving module drives the transmission of the power supply under the signal receiving of the wireless transmission module, and the passing rate of the vehicle is improved and the loss of electric energy is reduced by enhancing the response and the dormancy of the acquisition system.
Description
Technical Field
The invention relates to a vehicle access control technology, in particular to a vehicle access management control system based on multiple sensors and a control method thereof.
Background
With the rapid development of economy in China and the continuous improvement of the living standard of people, automobiles become more and more important transportation tools, are not only widely applied to various enterprises and public institutions, but also increasingly used for household automobiles, and therefore higher operation requirements have been put forward for the requirements of modern parking garage management equipment.
At present, a parking lot vehicle access management system mostly adopts a traditional manual rod lifting and rod lowering mode and a semi-intelligent control mode to detect and register incoming and outgoing vehicles, a congestion phenomenon occurs during a vehicle access peak period to cause vehicle detention, the travel time is delayed, and in the case of a large amount of vehicle detention, information of vehicles and personnel in a parking area cannot be ensured during rapid access; the traditional vehicle access control system adopts image collection license plate information, and then the collected information is checked with information registered by a computer terminal, so that the vehicle can be allowed to access, when the image collection is carried out on the license plate information of the vehicle to be accessed, the vehicle information can be accurately obtained only within the detection range of the image collection system by the position where the vehicle stops, and then a driver cannot visually judge whether the stop position of the vehicle is within the image collection range, so that the vehicle information can be accurately obtained only by adjusting the distance between the vehicle and the image collection system, and the mode can influence the running of the vehicle behind and cause congestion.
Disclosure of Invention
The purpose of the invention is as follows: the utility model provides a vehicle access control system based on multisensory to solve the above-mentioned problem.
The technical scheme is as follows: a vehicle access management control system based on multiple sensors is characterized by comprising a geomagnetic sensing module, an infrared sensing module, a signal processing module, a digital-to-analog conversion module, a wireless transmission module and a driving module;
the geomagnetic induction module judges whether a vehicle enters or not by sensing the transformation of the receiving and sending magnetic fields, so that the image acquisition system in a dormant state operates;
the infrared sensing module is used for pre-judging the position of the vehicle under the operation of the geomagnetic sensing module, so that the accuracy of the vehicle acquisition position is improved, and the passing rate of the vehicle is improved;
the signal processing module is used for carrying out intermediate modulation on the signals detected by the induction sensor to complete stable transmission of the detection signals;
D/A conversion, converting the continuous analog signal obtained by detection into discrete digital signal to complete signal conversion;
the wireless transmission module is used for carrying out receiving and transmitting control on wireless signals under the signal adjustment of digital-to-analog conversion;
and the driving module is used for driving the power transmission line to be switched on and off under the signal reception of the wireless transmission module.
According to one aspect of the invention, the geomagnetic induction module comprises a magnetic field sensor U7, a fuse FU1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, an operational amplifier U1, an operational amplifier U2, a capacitor C1, a capacitor C2, a diode D1 and an analog-to-digital converter U6, wherein a pin 4 and a pin 11 of the magnetic field sensor U7 are respectively connected with one end of the fuse FU1 and a power supply end + 5V; the pin 6 and the pin 7 of the magnetic field sensor U7 are both connected with a ground wire GND; a pin 5 of the magnetic field sensor U7 is respectively connected with one end of a resistor R1 and a pin 3 of an operational amplifier U1; the other end of the resistor R1 is connected with a power supply end + 5V; pin 2 of the magnetic field sensor U7 is respectively connected with one end of a resistor R2 and pin 2 of an operational amplifier U1; the other end of the resistor R2 is connected with a ground wire GND; the pin 9 of the magnetic field sensor U7 is respectively connected with one end of a resistor R3 and a pin 3 of an operational amplifier U2; the other end of the resistor R3 is connected with a power supply end + 5V; the pin 12 of the magnetic field sensor U7 is respectively connected with one end of a resistor R4 and a pin 2 of an operational amplifier U2; the other end of the resistor R4 is connected with a ground wire GND; pin 7 of the operational amplifier U2 is connected with one end of a capacitor C2; the other end of the capacitor C2 is respectively connected with a pin 6 of an operational amplifier U2 and a pin 2 of an analog-to-digital converter U6; the pin 4 of the operational amplifier U2 is respectively connected with one end of a resistor R5, the negative end of a diode D1 and a pin 3 of an analog-to-digital converter U6; the other end of the resistor R5 is connected with a power supply end + 5V; the positive end of the diode D1 is connected with the ground wire GND; the analog-to-digital converter U6 pin 1 is respectively connected with one end of a capacitor C1 and an operational amplifier U1 pin 6.
According to one aspect of the invention, the infrared sensing module comprises an infrared sensor P1, a capacitor C4, a capacitor C3, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a triode Q1, a lamp LED, a resistor R10 and a capacitor C5, wherein a pin 1 of the infrared sensor P1 is respectively connected with a positive terminal of the capacitor C4, one end of the capacitor C3 and the other end of a fuse FU 1; the pin 2 of the infrared sensor P1 is connected with one end of a resistor R6; the pin 3 of the infrared sensor P1 is respectively connected with one end of a resistor R7, one end of a resistor R9 and a ground wire GND; the negative end of the capacitor C4 is respectively connected with one end of a resistor R8, the other end of a resistor R7, the other end of a capacitor C3, the other end of a resistor R6, one end of a resistor R10, the positive end of a capacitor C5 and a pin 6 of an analog-to-digital converter U6; the other end of the resistor R8 is connected with the positive end of the LED of the lamp; the cathode end of the LED lamp is connected with the collector end of the triode Q1; the base end of the triode Q1 is connected with the other end of the resistor R9; the emitter terminal of the triode Q1 is connected with a ground wire GND; the other end of the resistor R10 is respectively connected with the negative end of the capacitor C5 and the ground wire GND.
According to one aspect of the invention, the signal processing module comprises a fuse FU2, a capacitor C7, a resistor R13, an operational amplifier U3, an operational amplifier U4, a resistor R11, a resistor R12, a capacitor C6, a resistor R14 and a capacitor C8, wherein one end of the fuse FU2 is connected with a pin 7 of the operational amplifier U3, a pin 7 of the operational amplifier U4, a pin 1 of an infrared sensor P1, a positive end of the capacitor C4, one end of the capacitor C3 and the other end of the fuse FU1 respectively; the pin 3 of the operational amplifier U3 is connected with one end of a resistor R11; the other end of the resistor R11 is respectively connected with the negative electrode end of a capacitor C4, one end of a resistor R8, the other end of a resistor R7, the other end of a capacitor C3, the other end of a resistor R6, one end of a resistor R10, the positive electrode end of a capacitor C5 and a pin 6 of an analog-digital converter U6; pin 2 of the operational amplifier U3 is connected with one end of a resistor R12; the other end of the resistor R12 is connected with the positive end of the capacitor C6; the negative end of the capacitor C6 is connected with a ground wire GND; pin 4 of the operational amplifier U3 is connected with a ground wire GND; the pin 6 of the operational amplifier U3 is respectively connected with the pin 2 of the operational amplifier U4, one end of a resistor R14 and the positive end of a capacitor C8; pin 4 of the operational amplifier U4 is connected with a ground wire GND; the pin 6 of the operational amplifier U4 is respectively connected with one end of a resistor R14 and the negative end of a capacitor C8; the pin 3 of the operational amplifier U4 is respectively connected with the positive terminal of a capacitor C7 and one end of a resistor R13; and the negative end of the capacitor C7 is respectively connected with one end of the resistor R13 and the ground wire GND.
According to one aspect of the invention, the digital-to-analog conversion comprises a fuse FU3, a digital-to-analog converter U9 and an operational amplifier U5, wherein one end of the fuse FU3 is connected with the other end of the fuse FU 2; the other end of the fuse FU3 is connected with a pin 19 and a pin 20 of a digital-to-analog converter U9 respectively; pin 1, pin 2, pin 3, pin 17 and pin 18 of the digital-to-analog converter U9 are all connected with a ground wire GND; the pin 8 of the digital-to-analog converter U9 is respectively connected with one end of a resistor R14 and the negative end of a capacitor C8 of a pin 6 of an operational amplifier U4; pin 9 of the digital-to-analog converter U9 is connected with pin 6 of an operational amplifier U5; the pin 3 of the operational amplifier U5 is respectively connected with a pin 10 of a digital-to-analog converter U9, a pin 12 and a ground wire GND; the pin 2 of the operational amplifier U5 is connected with a pin 11 of a digital-to-analog converter U9; the pin 2 of the operational amplifier U5 is connected with a pin 11 of a digital-to-analog converter U9; pin 7 of the operational amplifier U5 is connected with pin 14 of a digital-to-analog converter U9; and pin 4 of the operational amplifier U5 is connected with the ground line GND.
According to one aspect of the invention, the wireless transmission module comprises a capacitor C9, a resistor R15, an inductor L1, a triode Q2, a triode Q3 and a capacitor C10, wherein one end of the resistor R15 is respectively connected with one end of the capacitor C9, one end of the inductor L1, a pin 7 of an operational amplifier U5 and a pin 14 of a digital-to-analog converter U9; the other end of the capacitor C9 is respectively connected with an emitter terminal of a triode Q2 and a collector terminal of a triode Q3; the base terminal of the triode Q3 is connected with a pin 13 of a digital-to-analog converter U9; the emitter terminal of the triode Q3 is connected with a pin 5 of a digital-to-analog converter U9; the base end of the triode Q2 is connected with the other end of the resistor 15; the collector terminal of the triode Q2 is respectively connected with one end of a capacitor C10 and the other end of an inductor L1; the other end of the capacitor C10 is connected to the transceiving terminal TS.
According to one aspect of the invention, the driving module comprises a resistor R16, a capacitor C11, a trigger U8, a resistor R17, a triode Q4, a relay T1, a normally open contact S1 and a diode D2, wherein one end of the capacitor C11 is respectively connected with one end of a resistor R16, one end of a pin 3 of the trigger U8, one end of a resistor R15, one end of a capacitor C9, one end of an inductor L1, a pin 7 of an operational amplifier U5 and a pin 14 of a digital-to-analog converter U9; the other end of the capacitor C11 is respectively connected with the other end of the resistor R16 and a ground wire GND; the pin 4 and the pin 6 of the trigger U8 are both connected with a ground wire GND; the pin 1 of the trigger U8 is connected with one end of a resistor R17; the pin 2 and the pin 5 of the trigger U8 are respectively connected with one end of a relay T1, one end of a fuse FU3 and the other end of the fuse FU 2; the other end of the resistor R17 is connected with the base terminal of a triode Q4; the emitter terminal of the triode Q4 is connected with a ground wire GND; the collector end of the triode Q4 is connected with the other end of the relay T1; one end of the normally open contact S1 is connected with an Alternating Current (AC) input end; the other end of the normally open contact S1 is connected with the positive end of a diode D2; the negative terminal of the diode D2 is connected with the output terminal of the alternating current AC 1.
According to one aspect of the invention, the relay T1 and the triode Q4 are connected in series to form control over a voltage conduction command, and in order to guarantee that a driving voltage value is different from a control system operation voltage, the transmission of the voltage is controlled in a mode that the relay T1 adsorbs the normally open contact S1 to be closed, so that voltage values of different electric equipment can be met.
According to one aspect of the invention, the capacitor C4, the capacitor C5, the capacitor C6, the capacitor C7 and the capacitor C8 are all electrolytic capacitors; the type of the diode D2 is a voltage stabilizing diode; the model of the triode Q1, the triode Q2, the triode Q3 and the triode Q4 is NPN; the magnetic field sensor U7 is HMC 1002; the analog-to-digital converter U6 is in a model of TLC 2543; the model of the infrared sensor P1 is HS0038A 2; the model of the digital-to-analog converter U9 is DAC 0832; the trigger U8 is CD 4013.
According to one aspect of the invention, a control method of a multi-sensor based vehicle access management control system is characterized by the following steps;
and 6, receiving a control instruction through the wireless transmission module, enabling the trigger circuit to operate, and enabling the normally open circuit to obtain a closed starting voltage under the condition of meeting the conduction voltage by adopting on-off control of a triode so as to drive the associated equipment to operate and reduce the discharge phenomenon during direct contact control.
Has the advantages that: the invention designs a vehicle access management control system based on multiple sensors and a control method thereof, wherein geomagnetic induction coils are arranged at an input port and an output port of a vehicle to prejudge an accessed vehicle, an image acquisition system is further enabled to enter a preparation state, delay response is further reduced, and then the position of the vehicle is positioned through an infrared induction circuit, so that an indicator lamp arranged on a stop lever is lightened, a driver is reminded of a correct image acquisition distance, the access speed of the vehicle is further improved, the congestion of the vehicle is reduced, and the adjustment time of the position of the vehicle is reduced; the continuous change voltage pulse is converted into the continuous change electromagnetic wave through the digital-to-analog conversion circuit, the electromagnetic wave is transmitted through the wireless transmission circuit to collect signals, the collected signals are compared and operated through the terminal equipment, the compared signals are fed back to the receiving end, the operation of the driving module is controlled, the vehicles in and out pass through rapidly, the response of data transmission is further enhanced, the mode of analog-to-digital signal transmission is adopted, and the layout and the electric energy loss of circuits are further reduced.
Drawings
Fig. 1 is a block diagram of the present invention.
Fig. 2 is a diagram of the multi-sensor vehicle access management control system of the present invention.
Fig. 3 is a circuit diagram of a geomagnetic induction module according to the present invention.
Fig. 4 is a circuit diagram of an infrared sensing module of the present invention.
Fig. 5 is a circuit diagram of a signal processing module of the present invention.
Fig. 6 is a digital-to-analog conversion circuit diagram of the present invention.
Fig. 7 is a circuit diagram of a wireless transmission module of the present invention.
Fig. 8 is a circuit diagram of a driving module of the present invention.
Detailed Description
As shown in fig. 1, in this embodiment, a vehicle access management control system based on multiple sensors is characterized by including a geomagnetic sensing module, an infrared sensing module, a signal processing module, a digital-to-analog conversion module, a wireless transmission module, and a driving module;
the geomagnetic induction module judges whether a vehicle enters or not by sensing the transformation of the receiving and sending magnetic fields, so that the image acquisition system in a dormant state operates;
the infrared sensing module is used for pre-judging the position of the vehicle under the operation of the geomagnetic sensing module, so that the accuracy of the vehicle acquisition position is improved, and the passing rate of the vehicle is improved;
the signal processing module is used for carrying out intermediate modulation on the signals detected by the induction sensor to complete stable transmission of the detection signals;
D/A conversion, converting the continuous analog signal obtained by detection into discrete digital signal to complete signal conversion;
the wireless transmission module is used for carrying out receiving and transmitting control on wireless signals under the signal adjustment of digital-to-analog conversion;
and the driving module is used for driving the power transmission line to be switched on and off under the signal reception of the wireless transmission module.
In a further embodiment, as shown in fig. 3, the geomagnetic induction module includes a magnetic field sensor U7, a fuse FU1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, an operational amplifier U1, an operational amplifier U2, a capacitor C1, a capacitor C2, a diode D1, and an analog-to-digital converter U6.
In a further embodiment, pin 4 and pin 11 of the magnetic field sensor U7 in the geomagnetic induction module are respectively connected to one end of a fuse FU1 and a power supply terminal + 5V; the pin 6 and the pin 7 of the magnetic field sensor U7 are both connected with a ground wire GND; a pin 5 of the magnetic field sensor U7 is respectively connected with one end of a resistor R1 and a pin 3 of an operational amplifier U1; the other end of the resistor R1 is connected with a power supply end + 5V; pin 2 of the magnetic field sensor U7 is respectively connected with one end of a resistor R2 and pin 2 of an operational amplifier U1; the other end of the resistor R2 is connected with a ground wire GND; the pin 9 of the magnetic field sensor U7 is respectively connected with one end of a resistor R3 and a pin 3 of an operational amplifier U2; the other end of the resistor R3 is connected with a power supply end + 5V; the pin 12 of the magnetic field sensor U7 is respectively connected with one end of a resistor R4 and a pin 2 of an operational amplifier U2; the other end of the resistor R4 is connected with a ground wire GND; pin 7 of the operational amplifier U2 is connected with one end of a capacitor C2; the other end of the capacitor C2 is respectively connected with a pin 6 of an operational amplifier U2 and a pin 2 of an analog-to-digital converter U6; the pin 4 of the operational amplifier U2 is respectively connected with one end of a resistor R5, the negative end of a diode D1 and a pin 3 of an analog-to-digital converter U6; the other end of the resistor R5 is connected with a power supply end + 5V; the positive end of the diode D1 is connected with the ground wire GND; the analog-to-digital converter U6 pin 1 is respectively connected with one end of a capacitor C1 and an operational amplifier U1 pin 6.
In a further embodiment, as shown in fig. 4, the infrared sensing module includes an infrared sensor P1, a capacitor C4, a capacitor C3, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a transistor Q1, a lamp LED, a resistor R10, and a capacitor C5.
In a further embodiment, the pin 1 of the infrared sensor P1 in the infrared sensing module is respectively connected to the positive terminal of the capacitor C4, one terminal of the capacitor C3, and the other terminal of the fuse FU 1; the pin 2 of the infrared sensor P1 is connected with one end of a resistor R6; the pin 3 of the infrared sensor P1 is respectively connected with one end of a resistor R7, one end of a resistor R9 and a ground wire GND; the negative end of the capacitor C4 is respectively connected with one end of a resistor R8, the other end of a resistor R7, the other end of a capacitor C3, the other end of a resistor R6, one end of a resistor R10, the positive end of a capacitor C5 and a pin 6 of an analog-to-digital converter U6; the other end of the resistor R8 is connected with the positive end of the LED of the lamp; the cathode end of the LED lamp is connected with the collector end of the triode Q1; the base end of the triode Q1 is connected with the other end of the resistor R9; the emitter terminal of the triode Q1 is connected with a ground wire GND; the other end of the resistor R10 is respectively connected with the negative end of the capacitor C5 and the ground wire GND.
In a further embodiment, as shown in fig. 5, the signal processing module includes fuse FU2, capacitor C7, resistor R13, operational amplifier U3, operational amplifier U4, resistor R11, resistor R12, capacitor C6, resistor R14, and capacitor C8.
In a further embodiment, one end of the fuse FU2 in the signal processing module is connected to the pin 7 of the operational amplifier U3, the pin 7 of the operational amplifier U4, the pin 1 of the infrared sensor P1, the positive terminal of the capacitor C4, one end of the capacitor C3, and the other end of the fuse FU1, respectively; the pin 3 of the operational amplifier U3 is connected with one end of a resistor R11; the other end of the resistor R11 is respectively connected with the negative electrode end of a capacitor C4, one end of a resistor R8, the other end of a resistor R7, the other end of a capacitor C3, the other end of a resistor R6, one end of a resistor R10, the positive electrode end of a capacitor C5 and a pin 6 of an analog-digital converter U6; pin 2 of the operational amplifier U3 is connected with one end of a resistor R12; the other end of the resistor R12 is connected with the positive end of the capacitor C6; the negative end of the capacitor C6 is connected with a ground wire GND; pin 4 of the operational amplifier U3 is connected with a ground wire GND; the pin 6 of the operational amplifier U3 is respectively connected with the pin 2 of the operational amplifier U4, one end of a resistor R14 and the positive end of a capacitor C8; pin 4 of the operational amplifier U4 is connected with a ground wire GND; the pin 6 of the operational amplifier U4 is respectively connected with one end of a resistor R14 and the negative end of a capacitor C8; the pin 3 of the operational amplifier U4 is respectively connected with the positive terminal of a capacitor C7 and one end of a resistor R13; and the negative end of the capacitor C7 is respectively connected with one end of the resistor R13 and the ground wire GND.
In a further embodiment, as shown in fig. 6, the digital-to-analog conversion includes fuse FU3, digital-to-analog converter U9, operational amplifier U5.
In a further embodiment, one end of fuse FU3 in the digital-to-analog conversion is connected with the other end of fuse FU 2; the other end of the fuse FU3 is connected with a pin 19 and a pin 20 of a digital-to-analog converter U9 respectively; pin 1, pin 2, pin 3, pin 17 and pin 18 of the digital-to-analog converter U9 are all connected with a ground wire GND; the pin 8 of the digital-to-analog converter U9 is respectively connected with one end of a resistor R14 and the negative end of a capacitor C8 of a pin 6 of an operational amplifier U4; pin 9 of the digital-to-analog converter U9 is connected with pin 6 of an operational amplifier U5; the pin 3 of the operational amplifier U5 is respectively connected with a pin 10 of a digital-to-analog converter U9, a pin 12 and a ground wire GND; the pin 2 of the operational amplifier U5 is connected with a pin 11 of a digital-to-analog converter U9; the pin 2 of the operational amplifier U5 is connected with a pin 11 of a digital-to-analog converter U9; pin 7 of the operational amplifier U5 is connected with pin 14 of a digital-to-analog converter U9; and pin 4 of the operational amplifier U5 is connected with the ground line GND.
In a further embodiment, as shown in fig. 7, the wireless transmission module includes a capacitor C9, a resistor R15, an inductor L1, a transistor Q2, a transistor Q3, and a capacitor C10.
In a further embodiment, one end of the resistor R15 in the wireless transmission module is respectively connected to one end of a capacitor C9, one end of an inductor L1, a pin 7 of an operational amplifier U5, and a pin 14 of a digital-to-analog converter U9; the other end of the capacitor C9 is respectively connected with an emitter terminal of a triode Q2 and a collector terminal of a triode Q3; the base terminal of the triode Q3 is connected with a pin 13 of a digital-to-analog converter U9; the emitter terminal of the triode Q3 is connected with a pin 5 of a digital-to-analog converter U9; the base end of the triode Q2 is connected with the other end of the resistor 15; the collector terminal of the triode Q2 is respectively connected with one end of a capacitor C10 and the other end of an inductor L1; the other end of the capacitor C10 is connected to the transceiving terminal TS.
In a further embodiment, as shown in fig. 8, the driving module includes a resistor R16, a capacitor C11, a flip-flop U8, a resistor R17, a transistor Q4, a relay T1, a normally open contact S1, and a diode D2.
In a further embodiment, one end of the capacitor C11 in the driving module is respectively connected to one end of a resistor R16, a pin 3 of a flip-flop U8, one end of a resistor R15, one end of a capacitor C9, one end of an inductor L1, a pin 7 of an operational amplifier U5, and a pin 14 of a digital-to-analog converter U9; the other end of the capacitor C11 is respectively connected with the other end of the resistor R16 and a ground wire GND; the pin 4 and the pin 6 of the trigger U8 are both connected with a ground wire GND; the pin 1 of the trigger U8 is connected with one end of a resistor R17; the pin 2 and the pin 5 of the trigger U8 are respectively connected with one end of a relay T1, one end of a fuse FU3 and the other end of the fuse FU 2; the other end of the resistor R17 is connected with the base terminal of a triode Q4; the emitter terminal of the triode Q4 is connected with a ground wire GND; the collector end of the triode Q4 is connected with the other end of the relay T1; one end of the normally open contact S1 is connected with an Alternating Current (AC) input end; the other end of the normally open contact S1 is connected with the positive end of a diode D2; the negative terminal of the diode D2 is connected with the output terminal of the alternating current AC 1.
In a further embodiment, the relay T1 and the transistor Q4 are connected in series to form a control on a voltage conduction command, and in order to ensure that a driving voltage value is different from a control system operating voltage, the relay T1 is further used for absorbing the normally open contact S1 to be closed to control the transmission of the voltage, so that voltage values of different electric devices can be met.
In a further embodiment, the capacitor C4, the capacitor C5, the capacitor C6, the capacitor C7, and the capacitor C8 are all electrolytic capacitors in accordance with an aspect of the present invention; the type of the diode D2 is a voltage stabilizing diode; the model of the triode Q1, the triode Q2, the triode Q3 and the triode Q4 is NPN; the magnetic field sensor U7 is HMC 1002; the analog-to-digital converter U6 is in a model of TLC 2543; the model of the infrared sensor P1 is HS0038A 2; the model of the digital-to-analog converter U9 is DAC 0832; the trigger U8 is CD 4013.
In a further embodiment, as shown in fig. 2, a control method of a multi-sensor based vehicle access management control system is characterized by the steps of;
and 6, receiving a control instruction through the wireless transmission module, enabling the trigger circuit to operate, and enabling the normally open circuit to obtain a closed starting voltage under the condition of meeting the conduction voltage by adopting on-off control of a triode so as to drive the associated equipment to operate and reduce the discharge phenomenon during direct contact control.
In summary, the present invention has the following advantages: the geomagnetic induction module judges whether a vehicle enters or not through sensing the transformation of a receiving and sending magnetic field, so that the image acquisition system under the dormancy operates, then the operation response speed is improved through dual-channel signal operation, the resistor R2 and the resistor R4 are used for protecting the safety of a power supply, the positive terminal of the diode D1 is grounded for voltage stabilization and protection, and the capacitor C1 and the capacitor C2 are used for providing operation reserve electric energy for the operational amplifier U1 and the operational amplifier U2, so that the operation response is improved; the infrared sensing module is used for pre-judging the position of the vehicle under the operation of the geomagnetic sensing module, so that the accuracy of the acquisition position of the vehicle is improved, the passing rate of the vehicle is improved, the head position of the vehicle can be accurately acquired by adopting a correlation mode of the infrared sensor, the warning is carried out through the LED lamp, and the triode Q1 as a non-contact switch can quickly transmit a conduction signal and reduce the delay of the signal; then, the signal processing module performs neutral modulation on the signal detected by the induction sensor to complete stable transmission of the detection signal, a resistor C7 and a resistor R13 are connected in parallel in order to reduce the impedance of the high-frequency signal, and the resistor R12 and the capacitor C6 are connected in series to absorb peak voltage, reduce interference and provide a signal with stable signal-to-noise ratio for the next stage; converting the continuous analog signals obtained by detection into discrete digital signals through digital-to-analog conversion to complete the conversion of the signals; the wireless transmission module receives and transmits wireless signals under the signal adjustment of digital-to-analog conversion, the transmission of output signals and input signals is controlled through the on-off matching of the triode Q2 and the triode Q3, and the inductor L1 screens signals and filters noise; and the driving module controls the operation of the trigger U8 under the signal reception of the wireless transmission module, further conducts a conduction instruction to the triode Q4, so that the relay T1 obtains the end voltage of the positive and negative electrodes, and the adsorption normally-open contact S1 is closed, thereby driving the transmission of the power supply, and improving the passing rate of the vehicle and reducing the loss of electric energy by enhancing the response and dormancy of the acquisition system.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
Claims (9)
1. A vehicle access management control system based on multiple sensors is characterized by comprising a geomagnetic sensing module, an infrared sensing module, a signal processing module, a digital-to-analog conversion module, a wireless transmission module and a driving module;
the geomagnetic induction module judges whether a vehicle enters or not by sensing the transformation of the receiving and sending magnetic fields, so that the image acquisition system in a dormant state operates;
the infrared sensing module is used for pre-judging the position of the vehicle under the operation of the geomagnetic sensing module, so that the accuracy of the vehicle acquisition position is improved, and the passing rate of the vehicle is improved;
the signal processing module is used for carrying out intermediate modulation on the signals detected by the induction sensor to complete stable transmission of the detection signals;
D/A conversion, converting the continuous analog signal obtained by detection into discrete digital signal to complete signal conversion;
the wireless transmission module is used for carrying out receiving and transmitting control on wireless signals under the signal adjustment of digital-to-analog conversion;
and the driving module is used for driving the power transmission line to be switched on and off under the signal reception of the wireless transmission module.
2. The multi-sensor based vehicle access management control system according to claim 1, wherein the geomagnetic sensing module comprises a magnetic field sensor U7, a fuse FU1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, an operational amplifier U1, an operational amplifier U2, a capacitor C1, a capacitor C2, a diode D1 and an analog-to-digital converter U6, wherein the pin 4 and the pin 11 of the magnetic field sensor U7 are respectively connected with one end of the fuse FU1 and a power supply end + 5V; the pin 6 and the pin 7 of the magnetic field sensor U7 are both connected with a ground wire GND; a pin 5 of the magnetic field sensor U7 is respectively connected with one end of a resistor R1 and a pin 3 of an operational amplifier U1; the other end of the resistor R1 is connected with a power supply end + 5V; pin 2 of the magnetic field sensor U7 is respectively connected with one end of a resistor R2 and pin 2 of an operational amplifier U1; the other end of the resistor R2 is connected with a ground wire GND; the pin 9 of the magnetic field sensor U7 is respectively connected with one end of a resistor R3 and a pin 3 of an operational amplifier U2; the other end of the resistor R3 is connected with a power supply end + 5V; the pin 12 of the magnetic field sensor U7 is respectively connected with one end of a resistor R4 and a pin 2 of an operational amplifier U2; the other end of the resistor R4 is connected with a ground wire GND; pin 7 of the operational amplifier U2 is connected with one end of a capacitor C2; the other end of the capacitor C2 is respectively connected with a pin 6 of an operational amplifier U2 and a pin 2 of an analog-to-digital converter U6; the pin 4 of the operational amplifier U2 is respectively connected with one end of a resistor R5, the negative end of a diode D1 and a pin 3 of an analog-to-digital converter U6; the other end of the resistor R5 is connected with a power supply end + 5V; the positive end of the diode D1 is connected with the ground wire GND; the analog-to-digital converter U6 pin 1 is respectively connected with one end of a capacitor C1 and an operational amplifier U1 pin 6.
3. The multi-sensor based vehicle access management control system according to claim 1, wherein the infrared sensor module comprises an infrared sensor P1, a capacitor C4, a capacitor C3, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a triode Q1, a lamp LED, a resistor R10 and a capacitor C5, wherein the pin 1 of the infrared sensor P1 is respectively connected with the positive terminal of the capacitor C4, one terminal of the capacitor C3 and the other terminal of the fuse FU 1; the pin 2 of the infrared sensor P1 is connected with one end of a resistor R6; the pin 3 of the infrared sensor P1 is respectively connected with one end of a resistor R7, one end of a resistor R9 and a ground wire GND; the negative end of the capacitor C4 is respectively connected with one end of a resistor R8, the other end of a resistor R7, the other end of a capacitor C3, the other end of a resistor R6, one end of a resistor R10, the positive end of a capacitor C5 and a pin 6 of an analog-to-digital converter U6; the other end of the resistor R8 is connected with the positive end of the LED of the lamp; the cathode end of the LED lamp is connected with the collector end of the triode Q1; the base end of the triode Q1 is connected with the other end of the resistor R9; the emitter terminal of the triode Q1 is connected with a ground wire GND; the other end of the resistor R10 is respectively connected with the negative end of the capacitor C5 and the ground wire GND.
4. The multi-sensing based vehicle access management control system according to claim 1, wherein the signal processing module comprises a fuse FU2, a capacitor C7, a resistor R13, an operational amplifier U3, an operational amplifier U4, a resistor R11, a resistor R12, a capacitor C6, a resistor R14 and a capacitor C8, wherein one end of the fuse FU2 is connected with a pin 7 of the operational amplifier U3, a pin 7 of the operational amplifier U4, a pin 1 of an infrared sensor P1, a positive end of the capacitor C4, one end of the capacitor C3 and the other end of the fuse FU1 respectively; the pin 3 of the operational amplifier U3 is connected with one end of a resistor R11; the other end of the resistor R11 is respectively connected with the negative electrode end of a capacitor C4, one end of a resistor R8, the other end of a resistor R7, the other end of a capacitor C3, the other end of a resistor R6, one end of a resistor R10, the positive electrode end of a capacitor C5 and a pin 6 of an analog-digital converter U6; pin 2 of the operational amplifier U3 is connected with one end of a resistor R12; the other end of the resistor R12 is connected with the positive end of the capacitor C6; the negative end of the capacitor C6 is connected with a ground wire GND; pin 4 of the operational amplifier U3 is connected with a ground wire GND; the pin 6 of the operational amplifier U3 is respectively connected with the pin 2 of the operational amplifier U4, one end of a resistor R14 and the positive end of a capacitor C8; pin 4 of the operational amplifier U4 is connected with a ground wire GND; the pin 6 of the operational amplifier U4 is respectively connected with one end of a resistor R14 and the negative end of a capacitor C8; the pin 3 of the operational amplifier U4 is respectively connected with the positive terminal of a capacitor C7 and one end of a resistor R13; and the negative end of the capacitor C7 is respectively connected with one end of the resistor R13 and the ground wire GND.
5. The multi-sensor based vehicle access management control system of claim 1, wherein said digital-to-analog conversion comprises fuse FU3, digital-to-analog converter U9, operational amplifier U5, wherein said fuse FU3 is connected at one end to fuse FU2 at the other end; the other end of the fuse FU3 is connected with a pin 19 and a pin 20 of a digital-to-analog converter U9 respectively; pin 1, pin 2, pin 3, pin 17 and pin 18 of the digital-to-analog converter U9 are all connected with a ground wire GND; the pin 8 of the digital-to-analog converter U9 is respectively connected with one end of a resistor R14 and the negative end of a capacitor C8 of a pin 6 of an operational amplifier U4; pin 9 of the digital-to-analog converter U9 is connected with pin 6 of an operational amplifier U5; the pin 3 of the operational amplifier U5 is respectively connected with a pin 10 of a digital-to-analog converter U9, a pin 12 and a ground wire GND; the pin 2 of the operational amplifier U5 is connected with a pin 11 of a digital-to-analog converter U9; the pin 2 of the operational amplifier U5 is connected with a pin 11 of a digital-to-analog converter U9; pin 7 of the operational amplifier U5 is connected with pin 14 of a digital-to-analog converter U9; and pin 4 of the operational amplifier U5 is connected with the ground line GND.
6. The multi-sensing-based vehicle access management control system according to claim 1, wherein the wireless transmission module comprises a capacitor C9, a resistor R15, an inductor L1, a transistor Q2, a transistor Q3 and a capacitor C10, wherein one end of the resistor R15 is connected with one end of the capacitor C9, one end of the inductor L1, the pin 7 of the operational amplifier U5 and the pin 14 of the digital-to-analog converter U9 respectively; the other end of the capacitor C9 is respectively connected with an emitter terminal of a triode Q2 and a collector terminal of a triode Q3; the base terminal of the triode Q3 is connected with a pin 13 of a digital-to-analog converter U9; the emitter terminal of the triode Q3 is connected with a pin 5 of a digital-to-analog converter U9; the base end of the triode Q2 is connected with the other end of the resistor 15; the collector terminal of the triode Q2 is respectively connected with one end of a capacitor C10 and the other end of an inductor L1; the other end of the capacitor C10 is connected to the transceiving terminal TS.
7. The multi-sensing-based vehicle access management control system according to claim 1, wherein the driving module comprises a resistor R16, a capacitor C11, a trigger U8, a resistor R17, a triode Q4, a relay T1, a normally open contact S1 and a diode D2, wherein one end of the capacitor C11 is respectively connected with one end of a resistor R16, a pin 3 of the trigger U8, one end of a resistor R15, one end of the capacitor C9, one end of an inductor L1, a pin 7 of an operational amplifier U5 and a pin 14 of a digital-to-analog converter U9; the other end of the capacitor C11 is respectively connected with the other end of the resistor R16 and a ground wire GND; the pin 4 and the pin 6 of the trigger U8 are both connected with a ground wire GND; the pin 1 of the trigger U8 is connected with one end of a resistor R17; the pin 2 and the pin 5 of the trigger U8 are respectively connected with one end of a relay T1, one end of a fuse FU3 and the other end of the fuse FU 2; the other end of the resistor R17 is connected with the base terminal of a triode Q4; the emitter terminal of the triode Q4 is connected with a ground wire GND; the collector end of the triode Q4 is connected with the other end of the relay T1; one end of the normally open contact S1 is connected with an Alternating Current (AC) input end; the other end of the normally open contact S1 is connected with the positive end of a diode D2; the negative terminal of the diode D2 is connected with the output terminal of the alternating current AC 1.
8. The multi-sensor-based vehicle access management control system according to claim 7, wherein the relay T1 is connected in series with the transistor Q4 to form a voltage conduction command control, and in order to ensure that the driving voltage value is different from the control system operating voltage, the relay T1 is used to attract the normally open contact S1 to be closed to control the transmission of voltage, so that the voltage values of different electric devices can be met.
9. A control method of a multi-sensor based vehicle access management control system according to any one of claims 1 to 8, characterized by the steps of;
step 1, aiming at the control of a vehicle access management system, a geomagnetic field induction module and an infrared induction module are combined to form multipoint data monitoring, so that the position information of a vehicle is accurately acquired, a progressive transmission mode is further adopted, so that fed-back signals are converted and controlled one by one, the conditions that the vehicle information acquisition fails due to different driving angles and different positions of the vehicle are reduced, and the progressive signal transmission mode is adopted, so that the energy consumption of the module when the module does not work is reduced, and the internal loss of an acquisition system is reduced;
step 2, performing central adjustment on detection signals fed back by the geomagnetic induction module and the infrared induction module by adopting signal processing, reducing interference signals from being merged into main transmission signals, improving the stability of the transmission signals, and reducing the loss of lines by using the detection signals to be merged for transmission of a total path;
step 3, converting and adjusting signals transmitted in the line by adopting a digital-to-analog conversion mode, expanding and transmitting detection signals transmitted in the line by using a digital-to-analog conversion circuit according to different transmission paths and transmission ranges, wherein the digital-to-analog conversion can transmit the detection signals by adopting an electromagnetic wave transmission mode, so that the consumption caused by line transmission is reduced, and further, the requirement of remote wireless signal transmission can be met;
step 4, transmitting the generated analog signal by using a wireless transmission circuit, adjusting the transmitted signal by using a wireless transmission module, and directly correcting the burst signal in the signal transmission;
step 5, respectively adopting the on-off characteristic of the triode to manage and control the emission of the signal and the reception of the signal, thereby reducing the mutual signal interference during the signal receiving and transmitting and enhancing the transmission of the received and transmitted signal;
and 6, receiving a control instruction through the wireless transmission module, enabling the trigger circuit to operate, and enabling the normally open circuit to obtain a closed starting voltage under the condition of meeting the conduction voltage by adopting on-off control of a triode so as to drive the associated equipment to operate and reduce the discharge phenomenon during direct contact control.
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