WO2016058249A1 - Appareil de surveillance de véhicule - Google Patents

Appareil de surveillance de véhicule Download PDF

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Publication number
WO2016058249A1
WO2016058249A1 PCT/CN2014/092909 CN2014092909W WO2016058249A1 WO 2016058249 A1 WO2016058249 A1 WO 2016058249A1 CN 2014092909 W CN2014092909 W CN 2014092909W WO 2016058249 A1 WO2016058249 A1 WO 2016058249A1
Authority
WO
WIPO (PCT)
Prior art keywords
power supply
network camera
vehicle
circuit
protection device
Prior art date
Application number
PCT/CN2014/092909
Other languages
English (en)
Chinese (zh)
Inventor
刘文涛
梁伟
Original Assignee
深圳市锐明视讯技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市锐明视讯技术有限公司 filed Critical 深圳市锐明视讯技术有限公司
Publication of WO2016058249A1 publication Critical patent/WO2016058249A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles

Definitions

  • the present invention relates to the field of vehicle monitoring technologies, and in particular, to a vehicle monitoring device.
  • the electrical products used in vehicles have higher requirements for stability, especially for vehicle security products. Because of the public safety, the requirements for stability and safety are even more demanding.
  • the requirement for the vehicle security video equipment installed on the vehicle is to output a stable and reliable video during the power-on operation of the vehicle, but the IPC (network camera) in the vehicle security video device is an embedded system, when the device is powered down After the system restarts, it takes 10-30 seconds. If there is no video output during this time, this will not meet the requirements. Only by designing a suitable backup power supply for IPC can solve this problem.
  • the power supply on the vehicle not only loses power but also often causes an excessive voltage problem, which is mainly caused by an increase in the engine speed and a voltage rise caused by a large load on the vehicle being turned off. High, in this case, if you do not make some protective design on the input voltage of the vehicle equipment, it will easily lead to the burning of the equipment.
  • the current common solution is to use a surge-proof protection device to bleed excessive voltage. Although it can effectively protect the safety of equipment, it is also a waste of electricity.
  • there is a problem in the prior art that there is no backup power supply causing video interruption and the power is saved by venting excessive voltage in order to protect the security of the video device in the vehicle.
  • An object of the present invention is to provide a vehicle monitoring device, which aims to solve the problem of waste of power caused by the presence of no backup power source in the prior art, and the safety of the video device in the vehicle to vent the excessive voltage. .
  • an in-vehicle monitoring device including an in-vehicle power supply, a first protection device, a backup power supply device, a network camera power supply circuit, a network camera control circuit, a network camera, and a remote communication circuit;
  • An output end of the vehicle power supply is connected to an input end of the first protection device, an output end of the first protection device is connected to an input end of the backup power supply device, and the vehicle power supply is used to pass the first protection device Supplying power to the backup power device, the first protection device for preventing the backup power device from charging the vehicle power source;
  • An output end of the backup power supply device is connected to an input end of the network camera power supply circuit, and an output end of the network camera power supply circuit is connected to a power input end of the network camera control circuit, and the vehicle power supply is used for the standby Supplying power to the network camera power supply circuit while powering the power supply device, the network camera power supply circuit providing power to the network camera control circuit, the standby power supply being used to supply the network camera when the vehicle power supply stops providing power The power circuit provides power;
  • An output end of the network camera is connected to a signal input end of the network camera control circuit, an output end of the network camera control circuit is connected to an input end of the remote communication circuit, and the network camera is configured to collect vehicle internal state information, Converting the acquired analog video signal into a digital video signal and transmitting the digital video signal to the network camera control circuit, the network camera control circuit for transmitting the vehicle internal state information through the remote communication circuit Send to the control center.
  • the backup power device is a farad capacitor.
  • the first protection device is a diode, an anode of the diode is an input end of the first protection device, and a cathode of the diode is an output end of the first protection device.
  • the onboard monitoring device further includes a second protection device, an input end of the second protection device is connected to an input end of the backup power device, and an output end of the second protection device is connected to a ground, the second protection device A method for preventing a charging voltage of the standby power supply device from exceeding a predetermined voltage.
  • the second protection device is a transient diode
  • the cathode of the transient diode is the input of the second protection device
  • the anode of the transient diode is the output of the second protection device.
  • the remote communication circuit is a WiMax communication module, and the WiMax communication module is configured to send information sent by the network camera control circuit through a WiMax network.
  • the webcam is at least one, and the webcam is installed in front of the vehicle, behind the vehicle, or inside the vehicle.
  • the communication between the network camera control circuit and the network camera adopts an Ethernet interface.
  • the invention provides an in-vehicle monitoring device which can protect the IPC power supply circuit from being shocked by the power supply of the vehicle by providing a backup power supply device between the vehicle power supply and the IPC power supply circuit to absorb the surge voltage and the backup power supply. Damaged, and can absorb part of the power for storage, when the power supply of the vehicle to the IPC is interrupted for a short time, the IPC system is powered, so that the IPC can be used normally under the condition that the vehicle power supply voltage changes greatly, and the utilization rate of the power supply of the vehicle is improved. .
  • FIG. 1 is a schematic structural diagram of an in-vehicle monitoring device according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of an in-vehicle monitoring device according to another embodiment of the present invention.
  • FIG. 3 is a schematic diagram showing the circuit structure of an in-vehicle monitoring device according to another embodiment of the present invention.
  • an embodiment of the present invention provides an in-vehicle monitoring device.
  • the in-vehicle monitoring device includes an in-vehicle power supply 101 , a first protection device 102 , a backup power device 103 , a network camera power circuit 104 , and a network camera control circuit 105 .
  • the output end of the vehicle power supply 101 is connected to the input end of the first protection device 102, the output end of the first protection device 102 is connected to the input end of the backup power supply device 103, and the vehicle power supply 101 is used to supply power to the backup power supply device 103 through the first protection device 102.
  • the first protection device 102 is configured to prevent the backup power device 103 from charging the vehicle power source 101;
  • the output end of the backup power supply device 103 is connected to the input end of the network camera power supply circuit 104.
  • the output end of the network camera power supply circuit 104 is connected to the power input end of the network camera control circuit 105.
  • the vehicle power supply 101 is used to supply power to the backup power supply device 103.
  • the network camera power circuit 104 is powered, the network camera power circuit 104 provides power to the network camera control circuit 105, and the backup power source is used for the vehicle power supply. 101 supplies power to the network camera power circuit 104 when the power supply is stopped;
  • the output end of the network camera 106 is connected to the signal input end of the network camera control circuit 105.
  • the output end of the network camera control circuit 105 is connected to the input end of the remote communication circuit 107.
  • the network camera 106 is used to collect the internal state information of the vehicle, and the acquired analog simulation is performed.
  • the video signal is converted to a digital video signal, and the digital video signal is sent to a network camera control circuit 105 for transmitting vehicle internal state information to the control center via the remote communication circuit 107.
  • the backup power device 103 is a farad capacitor.
  • a farad capacitor serves as a function of absorbing surge voltage and standby power between the vehicle power supply and the IPC power supply circuit.
  • the backup power device 103 does not need to be maintained for a long time (generally within 20 seconds), so it is more appropriate to use the Faraday capacitor energy storage as the backup power source, because Fara
  • the capacitor has a large capacitance value. When there is a large surge voltage or current, it can effectively absorb the energy. When the power supply voltage is too low, the IPC power circuit can be discharged as a backup power source.
  • the circuit can be protected from the impact of the power supply on the vehicle and can absorb some of the power stored in the capacitor.
  • the IPC system is powered. This design can effectively improve the use of the vehicle to supply IPC power. Efficiency can also prevent the dual role of IPC restart caused by short-term power interruption.
  • the first protection device 102 is a diode
  • the anode of the diode is an input end of the first protection device 102
  • the cathode of the diode is an output end of the first protection device 102.
  • the vehicle power supply 101 inputs a current through a diode to a farad capacitor, which is also referred to as an anti-backflow diode.
  • the purpose of the diode is to prevent the power of the farad capacitor from being reversed to the vehicle power source 101.
  • the onboard monitoring device further includes a second protection device 108.
  • the input end of the second protection device 108 is connected to the input end of the backup power supply device 103, the output end of the second protection device 108 is connected to the ground, and the second protection device 108 is used for the second protection device 108.
  • the charging voltage of the standby power supply device 103 is prevented from exceeding a predetermined voltage.
  • the second protection device 108 is a transient diode, and the cathode of the transient diode is a second protection device. At the input of 108, the anode of the transient diode is the output of the second protection device 108.
  • TVS voltage transient diode
  • the remote communication circuit 107 is a WiMax communication module, and the WiMax communication module is configured to transmit information sent by the network camera control circuit 105 through the WiMax network.
  • At least one of the web cameras 106 is installed, and the webcam 106 is installed in front of the vehicle, behind the vehicle, or inside the vehicle.
  • the communication between the network camera control circuit 105 and the web camera 106 employs an Ethernet interface.
  • the vehicle power supply 101 charges the Farah capacitor through the anti-backflow diode and supplies power to the IPC power supply circuit.
  • the IPC works normally and the Farad capacitor charges to the normal working voltage of the vehicle; when the voltage of the vehicle power supply 101 rises, the Farad capacitor is charged again by the anti-backflow diode. This will make the voltage supply to the IPC power supply circuit rise relatively slowly, and will protect the IPC power supply circuit.
  • the anti-backflow diode Faraday capacitor will only discharge the power through the IPC power circuit without backflowing to the vehicle power supply, thus improving the efficiency of power consumption.
  • the farad capacitor can supply IPC to ensure normal operation without power loss due to the storage of a large amount of power. Also, because of the presence of the anti-backflow diode, the farad capacitor does not supply power to other devices of the vehicle, and the IPC is prolonged. Electricity time. In addition, the present invention can use different capacity farad capacitors to meet different standby delay requirements.
  • the vehicle monitoring device can protect the circuit from the power supply on the vehicle by setting a backup power supply device between the vehicle power supply and the IPC power supply circuit to absorb the surge voltage and the backup power source. The impact is damaged and can absorb part of the electricity stored in the capacitor.
  • the IPC system is powered. This design can effectively improve the efficiency of the vehicle to supply IPC power and prevent the short-term interruption of the power supply.
  • the dual role of IPC restart makes the car security IPC adapt to the harsh vehicle power environment, so that IPC can be used normally under the condition that the vehicle's power supply voltage changes greatly, and the utilization rate of the vehicle's power supply can be improved.
  • the IPC provided by the invention has greatly improved stability in the vehicle-mounted environment, and can effectively improve the use efficiency of the vehicle to supply IPC power. Let car security products step into the high-definition era, while solving the problem that most car monitors still use analog cameras with lower resolution.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Stand-By Power Supply Arrangements (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un appareil de surveillance de véhicule, comprenant un bloc d'alimentation monté sur véhicule (101), un premier dispositif de protection (102), un dispositif d'alimentation de secours (103), un circuit d'alimentation électrique de caméra réseau (104), un circuit de commande de caméra réseau (105), une caméra réseau (106) et un circuit de communication à distance (107). Le bloc d'alimentation monté sur véhicule (101) est utilisé pour alimenter le circuit d'alimentation de caméra réseau (104) tout en fournissant de l'énergie au dispositif d'alimentation de secours (103) ; le circuit d'alimentation de caméra réseau (104) est utilisé pour alimenter le circuit de commande de caméra réseau (105) ; et le dispositif d'alimentation de secours (103) est utilisé pour alimenter le circuit d'alimentation de caméra réseau (104) lorsque le bloc d'alimentation monté sur véhicule (101) cesse de fournir de l'énergie. Le dispositif d'alimentation de secours (103) est disposé entre le bloc d'alimentation monté sur véhicule (101) et le circuit d'alimentation de caméra réseau (104) pour jouer un double rôle, à savoir absorber une surtension et servir d'alimentation de secours, et lorsque la fourniture d'énergie à une caméra réseau par un véhicule est interrompue pendant un court laps de temps, le dispositif d'alimentation de secours alimente la caméra réseau, de sorte que la caméra réseau peut être utilisée normalement dans une situation de grande variation de la tension du bloc d'alimentation monté sur véhicule, et le taux d'utilisation de la puissance électrique fournie par le véhicule peut être augmentée en même temps.
PCT/CN2014/092909 2014-10-13 2014-12-03 Appareil de surveillance de véhicule WO2016058249A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410538332.5A CN104309552A (zh) 2014-10-13 2014-10-13 一种车辆监控装置
CN201410538332.5 2014-10-13

Publications (1)

Publication Number Publication Date
WO2016058249A1 true WO2016058249A1 (fr) 2016-04-21

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WO (1) WO2016058249A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN107039962A (zh) * 2017-05-22 2017-08-11 成都星火聚点科技有限公司 一种防止瞬间高压冲击的车载云镜
DE102017220805A1 (de) * 2017-11-22 2019-05-23 Robert Bosch Gmbh Fahrzeugvorrichtung und Verfahren zum Betrieb einer Fahrzeugvorrichtung
CN113029107B (zh) * 2021-03-30 2022-11-11 南京智行信息科技有限公司 一种基于机器视觉和5g网络的车载式检测装置
CN113271437B (zh) * 2021-05-11 2022-03-22 深圳市图元科技有限公司 车载视频的远程监控方法、设备、系统及存储介质

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CN201000676Y (zh) * 2007-01-30 2008-01-02 合肥工业大学 无线车载视频监控防盗装置
EP2335335A2 (fr) * 2008-09-13 2011-06-22 Moixa Energy Holdings Limited Systèmes, dispositifs et procédés de fourniture d'électricité, surveillance de l'utilisation, analyse, et améliorations de l'efficacité
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CN103985220A (zh) * 2014-05-16 2014-08-13 柳州天运寰通科技有限公司 一种车载安全监控终端
CN204184288U (zh) * 2014-10-13 2015-03-04 深圳市锐明视讯技术有限公司 一种车辆监控装置

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DE4139011A1 (de) * 1990-11-27 1992-06-04 Jatco Corp Speichereinrichtung fuer steuereinheit eines kraftfahrzeuges
JP5561269B2 (ja) * 2011-12-14 2014-07-30 株式会社デンソー 車両電源システム

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Publication number Priority date Publication date Assignee Title
CN201000676Y (zh) * 2007-01-30 2008-01-02 合肥工业大学 无线车载视频监控防盗装置
EP2335335A2 (fr) * 2008-09-13 2011-06-22 Moixa Energy Holdings Limited Systèmes, dispositifs et procédés de fourniture d'électricité, surveillance de l'utilisation, analyse, et améliorations de l'efficacité
CN202904342U (zh) * 2012-11-02 2013-04-24 沈阳中科正方新能源技术有限公司 纯电动车车载gps监控系统
CN103985220A (zh) * 2014-05-16 2014-08-13 柳州天运寰通科技有限公司 一种车载安全监控终端
CN204184288U (zh) * 2014-10-13 2015-03-04 深圳市锐明视讯技术有限公司 一种车辆监控装置

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