CN209126621U - A kind of rearview screen insurance system of vehicle-mounted bidirectional record instrument - Google Patents
A kind of rearview screen insurance system of vehicle-mounted bidirectional record instrument Download PDFInfo
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- CN209126621U CN209126621U CN201821797320.4U CN201821797320U CN209126621U CN 209126621 U CN209126621 U CN 209126621U CN 201821797320 U CN201821797320 U CN 201821797320U CN 209126621 U CN209126621 U CN 209126621U
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Abstract
The utility model discloses a kind of rearview screen insurance systems of vehicle-mounted bidirectional record instrument, it is characterized in that, including central processing unit, buffer, signal conditioner, image transmission module and the information management system being connected with central processing unit, signal processing unit, reception of wireless signals module, wireless camera and information receiving system；The utility model is by using information receiving system to planning driving path information needed for driving, the management information of carriage way, conventional running information is acquired, and pass through central processing unit for planning driving path information, the management information of carriage way, conventional running information carries out figure layer with image after vehicle captured by wireless camera and synthesizes processing, multiple information needed for enabling driving backsight image and driving are simultaneously displayed on driving mirror, the problem of much information needed for driving can not being shown to the utility model very good solution existing two-direction road recorder backsight Streaming Media screen protection system, greatly promote traffic safety.
Description
Technical field
The utility model relates to information technology fields, are a kind of backsight screen protection systems of vehicle-mounted bidirectional record instrument specifically
System.
Background technique
Automobile data recorder is roughly divided into one-way vehicle-mounted recorder and two-way Train-borne recorder, wherein two-way Train-borne recorder because
It can record the image of driving front and back, and be widely used.However, the backsight stream matchmaker of existing two-way Train-borne recorder
Body screen protection system can only show the image of vehicle rear camera on rearview mirror, can not show other running informations in rearview mirror
On, such as: the information such as navigation guide, real-time traffic, direction of traffic, speed, weather, place and electronic speed-determination show, that is,
It says in image after rearview mirror shows vehicle, driver will be unable to learn that road and other and driving are gone on a journey by rear Streaming Media screen protection
Related information, this just brings great security risk to driving.
Therefore, in current complicated road traffic, the backsight Streaming Media screen protection system of existing two-way Train-borne recorder,
Just be not well positioned to meet automobile friend drive trip demand.
Utility model content
The purpose of the utility model is to overcome existing two-direction road recorder backsight Streaming Media screen protection systems can not be right
The defect that much information needed for driving is shown, the one kind provided can show the image after vehicle and to row
The rearview screen insurance system for the vehicle-mounted bidirectional record instrument that road needed for vehicle and other information related with driving trip are shown.
The utility model is achieved through the following technical solutions: a kind of rearview screen insurance system of vehicle-mounted bidirectional record instrument, packet
Include central processing unit, the buffer being connected with central processing unit, signal conditioner, image transmission module and information management system
System, the signal processing unit being connected with signal conditioner, the reception of wireless signals module being connected with signal processing unit are led to
Cross the wireless camera that wireless network is connected with reception of wireless signals module, and the information being connected with information management system
Reception system；The signal conditioner includes Bandwidth adjustment device and what is be connected with Bandwidth adjustment device be mixed point adjuster；It is described
Bandwidth adjustment device is connected with signal processing unit；The Bandwidth adjustment device is connect with central processing unit.
The signal processing unit includes the micro- frequency amplifying circuit being connected with reception of wireless signals module, is amplified with micro- frequency
The oscillating circuit that circuit is connected, the Dolby circuit being connected respectively with oscillating circuit and micro- frequency amplifying circuit；The centre
Reason device is connected with Dolby circuit.
The information receiving system includes the navigation information wireless receiver and electricity being connected respectively with information management system
Sub- eye information wireless receiver and GPS information wireless receiver.
Further, the information management system includes the navigation information storage being connected with navigation information wireless receiver
Device, the electronic eye information memory being connected with electronic eye information wireless receiver, and be connected with GPS information wireless receiver
The GPS information memory connect；The central processing unit respectively with navigation information memory and electronic eye information memory and GPS
Information-storing device is connected.
Further, micro- frequency amplifying circuit includes amplifier P1, one end is connected with reception of wireless signals module,
The resistance R1 that the other end is connected with the anode of amplifier P1, and anode is connected with the cathode of amplifier P1, cathode is through electricity
The polar capacitor C1 being connected after resistance R2 with the anode of amplifier P1；The cathode of the polar capacitor C1 is grounded；The amplifier
Power input of the positive electrode of P1 as micro- frequency amplifying circuit, the output end of amplifier P1 are connected with oscillating circuit.
The oscillating circuit includes diode D2, and anode is connected with the output end of amplifier P1, cathode and diode D2
The polar capacitor pole C2, N that is connected of the pole P be connected with the cathode of polar capacitor C2, two poles that the pole P is connected with Dolby circuit
Pipe D1, and anode is connected with the pole N of diode D2, the polar capacitor C3 that cathode is connected with the pole P of diode D1；It is described
The pole N of diode D2 is connected with Dolby circuit.
Further, the Dolby circuit includes triode Q1, triode Q2, triode Q3, one end and diode D2
The pole N be connected, the adjustable resistance R3 that the other end is connected with the emitter of triode Q1, the pole the N phase of one end and diode D2
Connection, the adjustable resistance R4 that is connected with the emitter of triode Q1 of the other end, one end is connected with the collector of triode Q2,
The resistance R5 of other end ground connection, anode is connected with the collector of triode Q1, cathode is connected with the emitter of triode Q1
Polar capacitor C4, the resistance that one end is connected with the collector of triode Q1, the other end is connected with the base stage of triode Q3
R7, the resistance R6 that one end ground connection, the other end are connected with the collector of triode Q2, anode are connected with the collector of triode Q2
It connects, the polar capacitor C5 that cathode is grounded after being connected with the emitter of triode Q2, one end is connected with the collector of triode Q2
It connects, the collector phase of the resistance R8 that the other end is grounded after being connected with the emitter of triode Q3 and cathode and triode Q3
The polar capacitor C6 that connection, anode are connected with the collector of triode Q2；The base stage and adjustable resistance R4 of the triode Q2
Adjustable side be connected；The base stage of the triode Q1 is connected with the adjustable side of adjustable resistance R3, the transmitting of triode Q1
Pole is connected with the pole P of diode D1；The collector of the triode Q2 is connected with Bandwidth adjustment device.
The Bandwidth adjustment device is by field-effect tube Q4, and one end is connected with the drain electrode of field-effect tube Q4, the other end and three poles
The resistance R9 that the collector of pipe Q2 is connected, the polar capacitor C7 that anode is connected with the drain electrode of field-effect tube Q4, cathode is grounded,
And cathode be connected after resistance R10 with the source electrode of field-effect tube Q4, anode after resistance R11 with field-effect tube Q4 grid phase
The polar capacitor C11 of connection is formed；The anode of the polar capacitor C11 be mixed some adjusters and be connected.
The mixing point adjuster is by amplifier P2, and one end is connected with the anode of amplifier P2, the other end and polarity are electric
Hold the resistance R12 that is connected of anode of C11, anode is connected with the anode of amplifier P2, the output end of cathode and amplifier P2
The polar capacitor C8 being connected, anode be connected after resistance R13 with the anode of amplifier P2, the output of cathode and amplifier P2
Hold the polar capacitor C9 being connected, the polar capacitor that cathode ground connection, anode are connected after inductance L with the output end of amplifier P2
The C10 and resistance R14 that one end is connected with the cathode of amplifier P2, the other end is connected with the cathode of polar capacitor C10；
Output end of the output end of the amplifier P2 as signal conditioner.
The utility model compared with prior art, have the following advantages that and the utility model has the advantages that
(1) the utility model is not only simple in structure, and low in cost, by information receiving system to driving institute when use
The planning driving path information of need, the management information of carriage way, conventional running information are acquired, and will be gone by central processing unit
Image carries out figure after vehicle captured by vehicle routing information, the management information of carriage way, conventional running information and wireless camera
It is laminated that at processing, multiple information needed for enabling driving backsight image and driving are simultaneously displayed on driving mirror, thus this
The existing two-direction road recorder backsight Streaming Media screen protection system of utility model very good solution can not be to a variety of needed for driving
The problem of information is shown greatly promotes traffic safety.
(2) information receiving system that the utility model is used to receive driving information needed is provided with and various information transmitting terminals
One-to-one receiver can effectively improve the received accuracy of information, integrality.
(3) signal processing unit of the utility model setting can be effectively to micro- level of reception of wireless signals module transmission
Signal frequency amplifies, and can the garbage signal frequency in signal be eliminated or be inhibited, while can also be well to letter
Noise signal in number is eliminated, and keeps the transmission frequency of signal more stable, so that it is guaranteed that the accuracy of information transmission and complete
Property.
(4) signal conditioner of the utility model can bandwidth to the level signal of input, mixing point be adjusted, make electricity
The bandwidth of ordinary mail number, mixing point and the bandwidth of sampled signal are mixed and are a little consistent, and ensure that final level signal
Frequency intensity is not attenuated.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the electrical block diagram of the signal processing unit of the utility model.
Fig. 3 is the electrical block diagram of the signal conditioner of the utility model.
Specific embodiment
The utility model is described in further detail below with reference to embodiment and its attached drawing, but the reality of the utility model
It is without being limited thereto to apply mode.
Embodiment
As shown in Figure 1, the utility model includes central processing unit, buffer, the signal being connected with central processing unit
Conditioner, image transmission module and information management system, the signal processing unit being connected with signal conditioner, with signal processing
The reception of wireless signals module that unit is connected, the wireless camera being connected by wireless network with reception of wireless signals module
Head, and the information receiving system being connected with information management system.
Wherein, the signal conditioner is as shown in Figure 3 comprising Bandwidth adjustment device and is connected with Bandwidth adjustment device mixed
Frequency point adjuster；The Bandwidth adjustment device is connected with signal processing unit；The Bandwidth adjustment device is connect with central processing unit.
As shown in Fig. 2, the signal processing unit includes the micro- frequency amplifying circuit being connected with reception of wireless signals module, put with micro- frequency
The oscillating circuit that big circuit is connected, the Dolby circuit being connected respectively with oscillating circuit and micro- frequency amplifying circuit；The center
Processor is connected with Dolby circuit.
Meanwhile as shown in Figure 1, the information receiving system include navigation information wireless receiver and electronic eye information without
Line receiver and GPS information wireless receiver.Its navigation information wireless receiver passes through nothing for receiving navigation Cloud Server
The planning driving path information of line network transmission, to ensure traffic safety, navigation information wireless receiver is used and navigation cloud clothes
The wireless receiver that business device matches；Electronic eye information wireless receiver is then used to receive electronic eyes Cloud Server and passes through wireless network
The management information for the carriage way that network is transmitted, such as electronic eyes shooting, road speed limit and road violating the regulations forbid information, to prevent
There is act of violating regulations when driving in driver, and electronic eye information wireless receiver uses and electronic eyes Cloud Server phase
Matched wireless receiver；GPS information wireless receiver is for receiving conventional line of the GPS Cloud Server by wireless network transmissions
Vehicle information, such as time, weather, place, direction of traffic and speed information, the understanding in order to driver to environment,
Its GPS information wireless receiver uses the wireless receiver to match with GPS Cloud Server.
As shown in Figure 1, the information management system includes the row transmitted for storing navigation information wireless receiver
The navigation information memory of vehicle routing information, and the management of the carriage way for storing the transmission of electronic eye information wireless receiver
The electronic eye information memory of information, and the GPS letter of the conventional running information for storing the transmission of GPS information wireless receiver
Cease memory.The information management system effectively raises the accuracy to information management, steady by the way that different memory is arranged
It is qualitative, so that it is guaranteed that the accuracy that the backsight Streaming Media screen protection system of the utility model is transmitted, shown.The information management system is simultaneously
All information received are transferred to central processing unit.
When specific implementation, wireless camera uses the non-stealthy miniature webcam of high-definition night-viewing preferentially then to realize, is somebody's turn to do
Camera is mounted on by rotatable mounting bracket and is driven in chamber interior walls, for filming image after vehicle, wireless camera to be logical
It crosses wireless network and the image information taken is transferred to reception of wireless signals module.Reception of wireless signals in the utility model
Module preferentially uses band decoding chip, and the PT2262 wireless receiving plate of exportable Transistor-Transistor Logic level signal is realized.The wireless communication
The Transistor-Transistor Logic level signal of number receiving module output amplifies micro- level signal frequency in the signal through signal processing unit,
And the garbage signal frequency in signal is eliminated or inhibited, while also being disappeared well to the noise signal in signal
It removes, keeps the transmission frequency of signal more stable, level signal is transferred to signal conditioner to signal processing unit by treated.The letter
Number conditioner is adjusted the bandwidth of the level signal of input, mixing point, believes that the bandwidth of level signal, mixing point with sampling
Number bandwidth, mixing point is consistent, it is ensured that the accuracy of signal, the level signal after signal conditioner are sent to central processing
Device.
Meanwhile navigation information wireless receiver and electronic eye information wireless receiver and the GPS letter of information receiving system
Respective received information is transferred to information management system by breath wireless receiver.Information management system is then stored by navigation information
Device and electronic eye information memory and GPS information memory carry out one-to-one classification storage to the information of input, with true
Protect accuracy, the stability of each information.The information of classification storage is transferred to central processing unit by information management system.
The more mature Meitu Xiu Xiu software of current technology is preset in the central processing unit of the utility model, this is practical new
Type takes full advantage of the functions such as special effect of picture, picture mosaic possessed by Meitu Xiu Xiu, scene, frame, therefore, in the utility model
Central processor, which can be realized, carries out different coded treatments to the different information of input, and carries out displacement superposed place to different codings
Reason, that is, the management information and conventional running information of planning driving path information and carriage way are subjected to figure layer synthesis processing,
In order to show distribution.Central processing unit is collected mail before breath is handled in docking and can be stored information in buffer, because in
Central processor encodes planning driving path information figure layer, the management information figure layer of carriage way coding, conventional running information carry out figure
Layer encoded signal carries out processing and needs the regular hour, and buffer can then protect the signal for not entering central processing unit,
Anti- stop signal is by extraneous Electromagnetic Interference, it is ensured that signal transmits more acurrate property and more integrality.The buffer is then preferential
Using four unidirectional shifting memories with parallel input channels, which serves not only as signal and is transferred to central processing unit
Channel, and the signal passed through can be cached.
Further, central processing unit by the pictorial information after synthesis by image transmission module carry out conversion and it is anti-interference
It is transferred to after processing and is shown as the display screen of rearview mirror, car owner when driving, then can pass through a Streaming Media screen
It protects and is expanding the backsight visual field, allow all running informations to have a panoramic view while promoting traffic safety.Therefore, the utility model is real
Backsight Streaming Media screen protection system showed will driving backsight image, navigation guide, real-time traffic, direction of traffic, speed, weather,
The information such as place and electronic speed-determination are shown to the effect on rearview mirror simultaneously, keep driver quasi- in time by rear Streaming Media screen protection
The true image recognized after vehicle, road conditions and other related information of going on a journey with driving keep our driving safer, more
Easily.
Image transmission module described in the utility model preferentially uses Ao Qi Science and Technology Ltd., Shenzhen and is produced
AQ-86104G type image transmission module.Meanwhile navigation information memory and electronic eye information memory and GPS information are deposited
Reservoir has been all made of existing common memory to realize.
Still further, as shown in Fig. 2, micro- frequency amplifying circuit includes amplifier P1, resistance R1, resistance R2, and
Polar capacitor C1.Amplifier P1 has preferentially selected OP07 type amplifier in the present embodiment, and the resistance value of resistance R1 is set as 10k Ω,
And resistance R2 is not easy excessive as the feedback impedance resistance of amplifier P1, the resistance value of resistance R2 is preferentially set as 100k
The resistance value of Ω, resistance R2 can be adjusted according to the multiple that need to amplify to signal；Polar capacitor C1 is as ground capacity capacitance
It is set as 1 μ F.
When connection, one end of resistance R1 is connected with reception of wireless signals module, the positive phase of the other end and amplifier P1
Connection.Polar capacitor C1 anode be connected with the cathode of amplifier P1, cathode after resistance R2 with the positive phase of amplifier P1
Connection.The cathode of the polar capacitor C1 is grounded；The positive electrode of the amplifier P1 is defeated as the power supply of micro- frequency amplifying circuit
Enter end, the output end of amplifier P1 is connected with oscillating circuit.
Meanwhile the oscillating circuit includes diode D1, diode D2, polar capacitor C2 and polar capacitor C3.This reality
Diode D1 and diode D2 in example is applied to realize using the diode of model 1N4003；And polar capacitor C2 is oscillation electricity
Hold its capacitance and be set as 220 μ F, the capacitance of polar capacitor C3 is set as 10 μ F.
When connection, polar capacitor C2 anode be connected with the output end of amplifier P1, the pole the P phase of cathode and diode D2
Connection.The pole N of diode D1 is connected with the cathode of polar capacitor C2, and the pole P is connected with Dolby circuit.Polar capacitor C3 is just
Pole is connected with the pole N of diode D2, and cathode is connected with the pole P of diode D1.The pole N of the diode D2 and Dolby circuit
It is connected.
Further, the Dolby circuit includes four triodes, in particular to triode Q1 that model is 3DG12
~Q4, resistance value are the adjustable resistance R3 of 10k Ω, and resistance value is the adjustable resistance R4 of 1M, and resistance value is resistance R5~R8 of 10k Ω；
Capacitance is respectively the polar capacitor C4 and polar capacitor C5 of the 1 μ F and polar capacitor C6 that capacitance is 472 μ F.
When connection, one end of adjustable resistance R3 is connected with the pole N of diode D2, the emitter of the other end and triode Q1
It is connected.One end of adjustable resistance R4 is connected with the pole N of diode D2, and the other end is connected with the emitter of triode Q1.
One end of resistance R5 is connected with the collector of triode Q2, other end ground connection.The anode of polar capacitor C4 is with triode Q1's
Collector is connected, and cathode is connected with the emitter of triode Q1.
Wherein, one end of resistance R7 is connected with the collector of triode Q1, and the other end is connected with the base stage of triode Q3
It connects.One end of resistance R6 is grounded, and the other end is connected with the collector of triode Q2.Anode and the triode Q2 of polar capacitor C5
Collector be connected, cathode is grounded after being connected with the emitter of triode Q2.One end of resistance R8 and the collection of triode Q2
Electrode is connected, and the other end is grounded after being connected with the emitter of triode Q3.The cathode of polar capacitor C6 is with triode Q3's
Collector is connected, and anode is connected with the collector of triode Q2.
The base stage of the triode Q2 is connected with the adjustable side of adjustable resistance R4；The base stage of the triode Q1 with it is adjustable
The adjustable side of resistance R3 is connected, and the emitter of triode Q1 is connected with the pole P of diode D1；The collection of the triode Q2
Electrode is connected with Bandwidth adjustment device.
When the signal processing unit carrying out practically, resistance of the current signal through micro- frequency amplifying circuit of central processing unit output
R1 carries out current limliting, and instantaneous high current frequency signal, the current signal after resistance R1 current limliting are generated when preventing current signal from transmitting
On benchmark to the anode of amplifier P1, electric current on the anode of amplifier P1 increases, and the positive electrode of amplifier P1 is straight with outside
Galvanic electricity pressure is connected, operating voltage of the rectified voltage as signal processing unit.At this point, be serially connected in amplifier P1 anode with
The negative-feedback circuit that the resistance R2 and polar capacitor C1 of cathode anode are formed, aggravates the impulse hunting in amplifier P1, enters
The bandwidth of the current signal of amplifier P1 is effectively amplified, and the value of magnification to signal of amplifier P1, depends on resistance
The resistance value size of R2 can set the resistance value of resistance R2 in specific use according to the multiple that signal need to amplify, amplified
Current signal is transferred to oscillating circuit through the output end of amplifier P1.
Wherein, the current signal of the output end output of amplifier P1 is transferred on the polar capacitor C2 of oscillating circuit, polarity
Capacitor C2 inhibits the interference signal in signal, and treated current signal is transferred to two poles through the cathode of polar capacitor C2
The resonator that pipe D1 and diode D2 and polar capacitor C3 is formed, keeps the signal pulse frequency in signal consistent, through resonator
Treated, and signal is received through the anode and cathode of polar capacitor C3 to Dolby circuit.Adjustable resistance R3, three in the Dolby circuit
Pole pipe Q1, polar capacitor C4, triode Q3 and resistance R7 form static denoiser, in the electric current that the cathode of polar capacitor C exports
When signal is in low level, the resistance value of adjustable resistance R3 is high value, and triode Q1 ends, the potential rise on polar capacitor C4
Height, triode Q3 conducting, noise frequency is through arriving ground by the emitter of triode Q3.Meanwhile adjustable resistance R4, triode Q2, pole
Property capacitor C5 and resistance R6 formed DNR dynamic noise reduction device, polar capacitor C3 anode output high level when, adjustable resistance R4's
Adjustable side is in low resistance position, and the level in the base stage of triode Q2 increases, and triode Q3 conducting, polar capacitor C5 is serially connected in
The noise frequency in signal can be filtered out between the emitter and collector of triode Q2, and pass through the emitter of triode Q2
Side to ground.At this point, treated that current signal converges on triode Q3 for two-way, triode Q3 and polar capacitor C6 are formed and are filtered
Wave amplifying circuit, current signal are filtered through polar capacitor C6, and triode Q3 then carries out frequency to filtered signal
Amplification, the amplified level signal of frequency are transferred to signal conditioner by triode Q2.
As shown in figure 3, field-effect tube Q4 of the Bandwidth adjustment device by model BSS123/SOT, resistance value is 10k Ω's
Resistance R9, resistance R11, resistance value are the resistance R10 of 100 Ω, and the polar capacitor C7 and capacitance that capacitance is 220 μ F are 0.2 μ F's
Polar capacitor C11 composition.
When connection, one end of resistance R9 is connected with the drain electrode of field-effect tube Q4, the collector of the other end and triode Q2
It is connected.The anode of polar capacitor C7 is connected with the drain electrode of field-effect tube Q4, cathode ground connection.The cathode of polar capacitor C11 passes through
It is connected after resistance R10 with the source electrode of field-effect tube Q4, anode is connected after resistance R11 with field-effect tube Q4 grid.It is described
The anode of polar capacitor C11 be mixed some adjusters and be connected.
Meanwhile the mixing point adjuster, by the amplifier P2 of model OP364, resistance value is the resistance R12 of 2k Ω, resistance value
For the resistance R14 of 100k Ω, resistance value is the resistance R13 of 4k Ω, and capacitance is the polar capacitor C8 of 22 μ F, and capacitance is the polarity of 2 μ F
Capacitor C9, the inductance L composition that the polar capacitor C10 and electrodynamic capacity that capacitance is 0.2 μ F are 100 μ H.
When connection, one end of resistance R12 is connected with the anode of amplifier P2, the anode of the other end and polar capacitor C11
It is connected.The anode of polar capacitor C8 is connected with the anode of amplifier P2, and cathode is connected with the output end of amplifier P2.Pole
Property capacitor C9 anode being connected after resistance R13 with the anode of amplifier P2, cathode is connected with the output end of amplifier P2.
The cathode of polar capacitor C10 is grounded, and anode is connected after inductance L with the output end of amplifier P2.One end of resistance R14 with put
The cathode of big device P2 is connected, and the other end is connected with the cathode of polar capacitor C10.The output end of the amplifier P2 is as letter
The output end of number conditioner.
When operation, the level signal of the triode Q2 output of signal processing unit carries out current limliting, polar capacitor through resistance R9
C7 then discharges over the ground, and the level signal after current limliting is formed through field-effect tube Q4, resistance R10, resistance R11 and polar capacitor C11
Bandwidth adjustment device carries out Bandwidth adjustment, and the level signal after Bandwidth adjustment is sent to mixing point adjuster.Its resistance R12 is as letter
Number channel, level signal enters the circulating filter that polar capacitor C8, resistance R13 and polar capacitor C9 are formed after resistance R12
Wave device is filtered, and effectively eliminates the Electromagnetic Interference signal in signal, filtered level signal is loaded into polarity
On the anode of capacitor C8, the charge value of polar capacitor C8 is increased, and polar capacitor C8 starts to discharge, polar capacitor C9 saturation, amplification
Level on the anode of device P2 reaches 3.5V operating voltage, and polar capacitor C10 is made to start to discharge, and the electrodynamic capacity of inductance L is by 0 μ H
100 μ H are risen to, start to increase at this point, being mixed the charge put by the low frequency in the level signal of amplifier P2, i.e. level signal
Bandwidth be elevated, make the bandwidth of level signal, mixing point and the bandwidth of sampled signal, be mixed and be a little consistent, so that it is guaranteed that
The frequency intensity of the level signal of output is not attenuated.
According to above-described embodiment, the utility model can be realized well.
Claims (9)
1. a kind of rearview screen insurance system of vehicle-mounted bidirectional record instrument, which is characterized in that including central processing unit, and central processing
Buffer, signal conditioner, image transmission module and the information management system that device is connected, the letter being connected with signal conditioner
Number processing unit, the reception of wireless signals module being connected with signal processing unit pass through wireless network and reception of wireless signals
The wireless camera that module is connected, and the information receiving system being connected with information management system；The signal conditioner
What is be connected including Bandwidth adjustment device and with Bandwidth adjustment device is mixed point adjuster；The Bandwidth adjustment device and signal processing unit
It is connected；The Bandwidth adjustment device is connect with central processing unit.
2. a kind of rearview screen insurance system of vehicle-mounted bidirectional record instrument according to claim 1, which is characterized in that the signal
Processing unit includes the micro- frequency amplifying circuit being connected with reception of wireless signals module, the oscillation being connected with micro- frequency amplifying circuit
Circuit, the Dolby circuit being connected respectively with oscillating circuit and micro- frequency amplifying circuit；The central processing unit and Dolby circuit phase
Connection.
3. a kind of rearview screen insurance system of vehicle-mounted bidirectional record instrument according to claim 2, which is characterized in that the information
Reception system includes the navigation information wireless receiver and electronic eye information wireless receiving being connected respectively with information management system
Device and GPS information wireless receiver.
4. a kind of rearview screen insurance system of vehicle-mounted bidirectional record instrument according to claim 3, which is characterized in that the information
Management system includes the navigation information memory being connected with navigation information wireless receiver, with electronic eye information wireless receiver
The electronic eye information memory being connected, and the GPS information memory being connected with GPS information wireless receiver；In described
Central processor is connected with navigation information memory and electronic eye information memory and GPS information memory respectively.
5. a kind of rearview screen insurance system of vehicle-mounted bidirectional record instrument according to claim 4, which is characterized in that micro- frequency
Amplifying circuit includes amplifier P1, and one end is connected with reception of wireless signals module, the other end is connected with the anode of amplifier P1
The resistance R1 connect, and anode is connected with the cathode of amplifier P1, cathode is connected after resistance R2 with the anode of amplifier P1
The polar capacitor C1 connect；The cathode of the polar capacitor C1 is grounded；The positive electrode of the amplifier P1 is as micro- frequency amplification electricity
The output end of the power input on road, amplifier P1 is connected with oscillating circuit.
6. a kind of rearview screen insurance system of vehicle-mounted bidirectional record instrument according to claim 5, which is characterized in that the oscillation
Circuit includes diode D2, anode be connected with the output end of amplifier P1, the polarity that cathode is connected with the pole P of diode D2
The diode D1 that the capacitor pole C2, N is connected with the cathode of polar capacitor C2, the pole P is connected with Dolby circuit, and anode and two
The polar capacitor C3 that the pole N of pole pipe D2 is connected, cathode is connected with the pole P of diode D1；The pole N of the diode D2 and drop
Noise cancellation circuit is connected.
7. a kind of rearview screen insurance system of vehicle-mounted bidirectional record instrument according to claim 6, which is characterized in that the noise reduction
Circuit includes triode Q1, triode Q2, triode Q3, and one end is connected with the pole N of diode D2, the other end and triode Q1
The adjustable resistance R3 that is connected of emitter, one end is connected with the pole N of diode D2, the emitter of the other end and triode Q1
The adjustable resistance R4 being connected, the resistance R5 that one end is connected with the collector of triode Q2, the other end is grounded, anode and three poles
The polar capacitor C4 that the collector of pipe Q1 is connected, cathode is connected with the emitter of triode Q1, one end and triode Q1's
The resistance R7 that collector is connected, the other end is connected with the base stage of triode Q3, one end ground connection, the other end and triode Q2
The resistance R6 that collector is connected, anode is connected with the collector of triode Q2, cathode is connected with the emitter of triode Q2
The polar capacitor C5 being grounded after connecing, one end is connected with the collector of triode Q2, the emitter phase of the other end and triode Q3
The resistance R8 and cathode being grounded after connection be connected with the collector of triode Q3, the collector phase of anode and triode Q2
The polar capacitor C6 of connection；The base stage of the triode Q2 is connected with the adjustable side of adjustable resistance R4；The triode Q1's
Base stage is connected with the adjustable side of adjustable resistance R3, and the emitter of triode Q1 is connected with the pole P of diode D1；Described three
The collector of pole pipe Q2 is connected with Bandwidth adjustment device.
8. a kind of rearview screen insurance system of vehicle-mounted bidirectional record instrument according to claim 7, which is characterized in that the bandwidth
Adjuster is by field-effect tube Q4, and one end is connected with the drain electrode of field-effect tube Q4, the other end is connected with the collector of triode Q2
The resistance R9 connect, anode is connected with the drain electrode of field-effect tube Q4, the polar capacitor C7 of cathode ground connection and cathode are through resistance
It is connected after R10 with the source electrode of field-effect tube Q4, the polar capacitor that anode is connected after resistance R11 with field-effect tube Q4 grid
C11 composition；The anode of the polar capacitor C11 be mixed some adjusters and be connected.
9. a kind of rearview screen insurance system of vehicle-mounted bidirectional record instrument according to claim 8, which is characterized in that the mixing
Point adjuster is by amplifier P2, and one end is connected with the anode of amplifier P2, the other end is connected with the anode of polar capacitor C11
Resistance R12, anode be connected with the anode of amplifier P2, the polar capacitor that cathode is connected with the output end of amplifier P2
C8, the polarity electricity that anode is connected after resistance R13 with the anode of amplifier P2, cathode is connected with the output end of amplifier P2
Hold C9, cathode ground connection, the polar capacitor C10 that is connected after inductance L with the output end of amplifier P2 of anode and one end with put
The cathode of big device P2 is connected, the resistance R14 that the other end is connected with the cathode of polar capacitor C10；The amplifier P2's is defeated
Output end of the outlet as signal conditioner.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821797320.4U CN209126621U (en) | 2018-11-01 | 2018-11-01 | A kind of rearview screen insurance system of vehicle-mounted bidirectional record instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821797320.4U CN209126621U (en) | 2018-11-01 | 2018-11-01 | A kind of rearview screen insurance system of vehicle-mounted bidirectional record instrument |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111563977A (en) * | 2020-04-21 | 2020-08-21 | 汉腾汽车有限公司 | Integration method for recording video and streaming media vision and driving night vision based on driving recorder |
| CN111586260A (en) * | 2020-05-10 | 2020-08-25 | 上海翼亮实业有限公司 | High-definition image signal processing system for construction effect display equipment |
| CN114556908A (en) * | 2019-12-20 | 2022-05-27 | Jvc建伍株式会社 | Recording device, recording method, and program |
-
2018
- 2018-11-01 CN CN201821797320.4U patent/CN209126621U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114556908A (en) * | 2019-12-20 | 2022-05-27 | Jvc建伍株式会社 | Recording device, recording method, and program |
| CN111563977A (en) * | 2020-04-21 | 2020-08-21 | 汉腾汽车有限公司 | Integration method for recording video and streaming media vision and driving night vision based on driving recorder |
| CN111586260A (en) * | 2020-05-10 | 2020-08-25 | 上海翼亮实业有限公司 | High-definition image signal processing system for construction effect display equipment |
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