CN105096628A - Mode recognition prompting system for signal lamps - Google Patents

Mode recognition prompting system for signal lamps Download PDF

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Publication number
CN105096628A
CN105096628A CN201510556611.9A CN201510556611A CN105096628A CN 105096628 A CN105096628 A CN 105096628A CN 201510556611 A CN201510556611 A CN 201510556611A CN 105096628 A CN105096628 A CN 105096628A
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CN
China
Prior art keywords
module
amplifier
resistance
pole
prompting
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CN201510556611.9A
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Chinese (zh)
Inventor
刘霖
刘永
邱会中
杨先明
张晓奕
罗颖
Original Assignee
宁波摩米创新工场电子科技有限公司
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Priority to CN201510556611.9A priority Critical patent/CN105096628A/en
Publication of CN105096628A publication Critical patent/CN105096628A/en

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Abstract

The invention discloses a mode recognition prompting system for signal lamps. The system comprises a power supply module, a prompting module, a central control module and a camera, wherein the prompting module, the central control module and the camera are connected with the power supply module. The prompting module and the camera are connected with the central control module. The central control module is composed of a positioning module, a mode recognition module connected with the positioning module, and a speed sensing module connected with the mode recognition module. The system is characterized in that the speed sensing module is composed of a processor, an A/D conversion module, a storage module, an execution module and a speed sensor. The A/D conversion module, the storage module and the execution module are connected with the processor. The speed sensor is connected with the A/D conversion module. By means of the system, drivers are reminded of the states of signal lamps in front of the drivers. In this way, the safe driving problem of running a red lamp by mistake due to the fatigue driving or the divergent thinking of drivers can be solved. At the same time, the states of signal lamps can be judged accurately. Therefore, the occurrence of safety hazards to drivers due to misjudgement can be avoided.

Description

A kind of signal lamp pattern-recognition system for prompting

Technical field

The present invention relates to a kind of pattern recognition system, specifically refer to a kind of signal lamp pattern-recognition system for prompting.

Background technology

At present along with the sustainable development of economy, automobile quantity sharply increases, urban road day by day blocks up, in order to ensure traffic order and pedestrains safety, generally on every bar road, there is one group of red, yellow, and green traffic lights, by the State Transferring of signal lamp, command various vehicle and pedestrains safety to pass through, realize the robotization of traffic administration.

In order to prevent making a dash across the red light by mistake, be all use cab signal lamp prompt system or in signal lamp control system, sender unit be installed at present, in car, signal receiving device be installed, thus reach the object of marker lamp.But cab signal lamp prompt system is easily subject to the interference of extraneous color, and can only simply programme, this type of technology of function for complexity will have significant limitation, lack good extendability.And directly the current state of signal lamp is sent in a broadcast manner the signal receiving device of all vehicles in certain limit by control system, so the current state of signal lamp can be obtained like clockwork.But because needs install signal output apparatus at each traffic lights place, the method cost is higher, and is not suitable for the situation of Current traffic facility.Therefore, how solving the problem, is the current task of top priority.

Summary of the invention

The object of the invention is to overcome the defect that driver makes a dash across the red light by mistake, a kind of signal lamp pattern-recognition system for prompting is provided.

Object of the present invention is achieved through the following technical solutions: a kind of signal lamp pattern-recognition system for prompting, and by power module, the prompting module be connected with power module, middle control module and camera form; Described prompting module and camera are all connected with middle control module.

Further, described middle control module is then by locating module, and the pattern recognition module be connected with locating module and the speed perception module be connected with pattern recognition module form; Described speed perception module then by processor, the A/D modular converter, memory module, the execution module that are connected with processor, and the speed pickup be connected with A/D modular converter forms.

Described A/D modular converter is then by constant-current source circuit, and the change-over circuit be connected with constant-current source circuit forms, described constant-current source circuit is then by amplifier P1, triode VT1, thyristor D1, one end is connected with the positive pole of amplifier P1, the other end then meets the resistance R1 of 36V voltage, be serially connected in the potentiometer R2 between the positive pole of amplifier P1 and the P pole of thyristor D1, be serially connected in the electric capacity C1 between the output terminal of amplifier P1 and negative pole, be serially connected in the resistance R4 between the negative pole of amplifier P1 and the emitter of triode VT1, be serially connected in the resistance R3 between the output terminal of amplifier P1 and the base stage of triode VT1, and the electric capacity C2 be serially connected between the base stage of triode VT1 and emitter forms, the N pole of described thyristor D1 is connected with the positive pole of amplifier P1, its P pole ground connection, it controls pole and be then connected with the control end of potentiometer R2, grounded collector, its emitter of described triode VT1 are then connected with change-over circuit.

Described change-over circuit is by conversion chip U, amplifier P2, amplifier P3, one end is connected with the positive pole of amplifier P2, the other end then forms the resistance R5 of the input end of this A/D modular converter together with the negative pole of amplifier P2, be serially connected in the voltage stabilizing diode D2 between the positive pole of amplifier P2 and negative pole, one end is connected with the negative pole of amplifier P2, the resistance R6 of other end ground connection, be serially connected in the resistance R7 between the positive pole of amplifier P2 and output terminal and electric capacity C3, one end is connected with the output terminal of amplifier P2, the resistance R8 that the other end is then connected with the negative pole of amplifier P3 after resistance R9, one end is connected with the output terminal of amplifier P2, the resistance R11 that the other end is then connected with the GND pin of conversion chip U after electric capacity C4, N pole is connected with the GND pin of conversion chip U after resistance R10, the diode D3 of P pole ground connection, one end is connected with the REC pin of conversion chip U, the resistance R12 of other end ground connection, one end is connected with the R.C pin of conversion chip U, the resistance R14 of ground connection while the other end is then connected with the TH pin of conversion chip U after resistance R13, and positive pole is connected with the R.C pin of conversion chip U, the electric capacity C5 of minus earth forms, the positive pole of described amplifier P3 is connected with the CO pin of conversion chip U, its output terminal is then connected with the N pole of diode D3, the output terminal that the VCC pin of described conversion chip U is connected with the emitter of triode VT1, its FO pin and COM pin one form this A/D modular converter.

In order to better implement the present invention, described processor is preferably S3C2440 processor, and described conversion chip U then preferentially selects LM331 integrated chip to realize.

The present invention comparatively prior art compares, and has the following advantages and beneficial effect:

(1) the present invention can remind driver's front signal lamp situation, solves the safe driving problem of by mistake making a dash across the red light because driver tired driving or distraction cause.

(2) the present invention is accurate to the condition adjudgement of signal lamp, avoids false judgment and driver brings potential safety hazard.

Accompanying drawing explanation

Fig. 1 is one-piece construction block diagram of the present invention.

Fig. 2 is speed perception modular structure block diagram of the present invention.

Fig. 3 is the circuit structure diagram of A/D modular converter of the present invention.

Embodiment

Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.

Embodiment

As shown in Figure 1, signal lamp pattern-recognition system for prompting of the present invention, by power module, the prompting module be connected with power module, middle control module and camera form; Described prompting module and camera are all connected with middle control module.

Wherein, power module is used for providing working power to prompting module, middle control module and camera.Camera for gathering front side video image, and by described transmission of video images to middle control module.This prompting module, for according to the prompting instruction received or message, sends corresponding prompt tone.Middle control module is the control center of whole system, and it is by locating module, and the pattern recognition module be connected with locating module and the speed perception module be connected with pattern recognition module form.

This locating module is used for the track that positioned vehicle travels, and vehicle is apart from the distance at crossing; When the distance at vehicle distance crossing is less than default distance threshold, namely once discovery vehicle close to intersection, it starts camera and pattern recognition module.This pattern recognition module for analyzing the video image storing collected by camera and arrive, and extracts the real-time information of signal lamp; If the signal lamp that vehicle heading is corresponding is red light or amber light, then trigger speed perception module, this speed perception module then judges the real-time speed of vehicle; If the signal lamp that vehicle heading is corresponding is green light, then send transitable message to prompting module, then externally send can pass phrase tone signal for prompting module.

As shown in Figure 2, described speed perception module then by processor, the A/D modular converter, memory module, the execution module that are connected with processor, and the speed pickup be connected with A/D modular converter forms.

This speed pickup is used for the real-time speed signal of collection vehicle, and its K-LC6 type radar sensor preferentially adopting Yu Da Science and Technology Ltd. of Shenzhen one hundred to produce, the radar sensor of this model has very high sensitivity.The vehicle velocity signal of A/D modular converter then for speed pickup is collected is converted to the digital electric signal that system can identify, and flows to processor.Processor is then the control center of this speed perception module, it is for carrying out analyzing and processing to vehicle speed information, and vehicle speed information and the speed of a motor vehicle dynamic threshold be preset in memory module are compared, as vehicle real-time speed exceedes default speed of a motor vehicle dynamic threshold, it then triggers execution module, triggers prompting module report to the police by execution module; In order to reach better implementation result, the S3C2440 processor that this processor preferentially adopts Samsung of Korea S to produce, the features such as its dominant frequency processing speed reaches 400MHz, has low-power consumption, process computing power at a high speed.

In order to improve slewing rate, as shown in Figure 3, it is by constant-current source circuit for the structure of this A/D modular converter, and the change-over circuit be connected with constant-current source circuit forms.Wherein, constant-current source circuit comprises amplifier P1, triode VT1, thyristor D1, resistance R1, potentiometer R2, resistance R3, resistance R4, electric capacity C1 and electric capacity C2.

During connection, one end of resistance R1 is connected with the positive pole of amplifier P1, its other end then connects 36V voltage, potentiometer R2 is then serially connected between the positive pole of amplifier P1 and the P pole of thyristor D1, between the output terminal that electric capacity C1 is serially connected in amplifier P1 and negative pole, resistance R4 is serially connected between the negative pole of amplifier P1 and the emitter of triode VT1, resistance R3 is serially connected between the output terminal of amplifier P1 and the base stage of triode VT1, between the base stage that electric capacity C2 is then serially connected in triode VT1 and emitter.

Meanwhile, the N pole of described thyristor D1 is connected with the positive pole of amplifier P1, its P pole ground connection, it controls pole and be then connected with the control end of potentiometer R2.Grounded collector, its emitter of described triode VT1 are then connected with change-over circuit.

Power supply, after resistance R1 carries, can use the arbitrary value of the output voltage control of thyristor D1 between 20 ~ 36V by regulator potentiometer R2.This output voltage is as the startup power supply of this triode VT1, at this moment triode VT1 conducting after amplifier P1, and the current value that it exports is constant, guarantees the continuity of signal conversion.In order to ensure implementation result, this amplifier P1 preferential collection LM358 type operational amplifier.

From triode VT1 export electric current then as the working current of this change-over circuit, this change-over circuit is then by conversion chip U, amplifier P2, amplifier P3, the resistance R5 that one end is connected with the positive pole of amplifier P2, the other end then forms the input end of this A/D modular converter together with the negative pole of amplifier P2, this input end is then connected with the output terminal of speed pickup.Be serially connected in the voltage stabilizing diode D2 between the positive pole of amplifier P2 and negative pole, one end is connected with the negative pole of amplifier P2, the resistance R6 of other end ground connection, be serially connected in the resistance R7 between the positive pole of amplifier P2 and output terminal and electric capacity C3, one end is connected with the output terminal of amplifier P2, the resistance R8 that the other end is then connected with the negative pole of amplifier P3 after resistance R9, one end is connected with the output terminal of amplifier P2, the resistance R11 that the other end is then connected with the GND pin of conversion chip U after electric capacity C4, N pole is connected with the GND pin of conversion chip U after resistance R10, the diode D3 of P pole ground connection, one end is connected with the REC pin of conversion chip U, the resistance R12 of other end ground connection, one end is connected with the R.C pin of conversion chip U, the resistance R14 of ground connection while the other end is then connected with the TH pin of conversion chip U after resistance R13, and positive pole is connected with the R.C pin of conversion chip U, the electric capacity C5 of minus earth forms.

The positive pole of described amplifier P3 is connected with the CO pin of conversion chip U, its output terminal is then connected with the N pole of diode D3.The output terminal that the VCC pin of described conversion chip U is connected with the emitter of triode VT1, its FO pin and COM pin one form this A/D modular converter, this output terminal is then connected with processor.Wherein, this amplifier P2, amplifier P3, electric capacity C3, electric capacity C4, resistance R7, resistance R11, resistance R8 and resistance R9 then form a sign-changing amplifier, and it carries out distortionless amplification to signal, thus improve conversion efficiency and the conversion accuracy of conversion chip U.In order to reach better implementation result, described conversion chip U is preferably LM331 integrated chip to realize.

As mentioned above, just well the present invention can be implemented.

Claims (5)

1. a signal lamp pattern-recognition system for prompting, by power module, the prompting module be connected with power module, middle control module and camera form; Described prompting module and camera are all connected with middle control module; Described middle control module is then by locating module, and the pattern recognition module be connected with locating module and the speed perception module be connected with pattern recognition module form; It is characterized in that, described speed perception module then by processor, the A/D modular converter, memory module, the execution module that are connected with processor, and the speed pickup be connected with A/D modular converter forms.
2. a kind of signal lamp pattern-recognition system for prompting according to claim 1, is characterized in that: described A/D modular converter is then by constant-current source circuit, and the change-over circuit be connected with constant-current source circuit forms, described constant-current source circuit is then by amplifier P1, triode VT1, thyristor D1, one end is connected with the positive pole of amplifier P1, the other end then meets the resistance R1 of 36V voltage, be serially connected in the potentiometer R2 between the positive pole of amplifier P1 and the P pole of thyristor D1, be serially connected in the electric capacity C1 between the output terminal of amplifier P1 and negative pole, be serially connected in the resistance R4 between the negative pole of amplifier P1 and the emitter of triode VT1, be serially connected in the resistance R3 between the output terminal of amplifier P1 and the base stage of triode VT1, and the electric capacity C2 be serially connected between the base stage of triode VT1 and emitter forms, the N pole of described thyristor D1 is connected with the positive pole of amplifier P1, its P pole ground connection, it controls pole and be then connected with the control end of potentiometer R2, grounded collector, its emitter of described triode VT1 are then connected with change-over circuit.
3. a kind of signal lamp pattern-recognition system for prompting according to claim 2, it is characterized in that: described change-over circuit is by conversion chip U, amplifier P2, amplifier P3, one end is connected with the positive pole of amplifier P2, the other end then forms the resistance R5 of the input end of this A/D modular converter together with the negative pole of amplifier P2, be serially connected in the voltage stabilizing diode D2 between the positive pole of amplifier P2 and negative pole, one end is connected with the negative pole of amplifier P2, the resistance R6 of other end ground connection, be serially connected in the resistance R7 between the positive pole of amplifier P2 and output terminal and electric capacity C3, one end is connected with the output terminal of amplifier P2, the resistance R8 that the other end is then connected with the negative pole of amplifier P3 after resistance R9, one end is connected with the output terminal of amplifier P2, the resistance R11 that the other end is then connected with the GND pin of conversion chip U after electric capacity C4, N pole is connected with the GND pin of conversion chip U after resistance R10, the diode D3 of P pole ground connection, one end is connected with the REC pin of conversion chip U, the resistance R12 of other end ground connection, one end is connected with the R.C pin of conversion chip U, the resistance R14 of ground connection while the other end is then connected with the TH pin of conversion chip U after resistance R13, and positive pole is connected with the R.C pin of conversion chip U, the electric capacity C5 of minus earth forms, the positive pole of described amplifier P3 is connected with the CO pin of conversion chip U, its output terminal is then connected with the N pole of diode D3, the output terminal that the VCC pin of described conversion chip U is connected with the emitter of triode VT1, its FO pin and COM pin one form this A/D modular converter.
4. a kind of signal lamp pattern-recognition system for prompting according to claim 3, is characterized in that: described processor is S3C2440 processor.
5. a kind of signal lamp pattern-recognition system for prompting according to claim 3, is characterized in that: described conversion chip U is LM331 integrated chip.
CN201510556611.9A 2015-09-02 2015-09-02 Mode recognition prompting system for signal lamps CN105096628A (en)

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US20130049988A1 (en) * 2011-08-24 2013-02-28 Ford Global Technologies, Llc Device and method for traffic sign recognition
CN103337186A (en) * 2013-06-08 2013-10-02 华中科技大学 Road junction driving auxiliary device for motor vehicle
CN104395944A (en) * 2012-05-24 2015-03-04 宝马股份公司 Carriageway recognition

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Publication number Priority date Publication date Assignee Title
CN102666262A (en) * 2009-09-25 2012-09-12 法雷奥开关和传感器有限责任公司 Driver assistance system for a vehicle, vehicle with a driver assistance system, and method for aiding a driver when operating a vehicle
CN201749569U (en) * 2010-05-10 2011-02-16 大连智达科技有限公司 Intelligent vehicle-mounted terminal
US20130049988A1 (en) * 2011-08-24 2013-02-28 Ford Global Technologies, Llc Device and method for traffic sign recognition
CN104395944A (en) * 2012-05-24 2015-03-04 宝马股份公司 Carriageway recognition
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Application publication date: 20151125

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