WO2019178842A1 - Automobile, et dispositif de surveillance monté sur véhicule et circuit de détection de signal de véhicule associé - Google Patents

Automobile, et dispositif de surveillance monté sur véhicule et circuit de détection de signal de véhicule associé Download PDF

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Publication number
WO2019178842A1
WO2019178842A1 PCT/CN2018/080233 CN2018080233W WO2019178842A1 WO 2019178842 A1 WO2019178842 A1 WO 2019178842A1 CN 2018080233 W CN2018080233 W CN 2018080233W WO 2019178842 A1 WO2019178842 A1 WO 2019178842A1
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WO
WIPO (PCT)
Prior art keywords
module
voltage
vehicle
resistor
signal
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Application number
PCT/CN2018/080233
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English (en)
Chinese (zh)
Inventor
范章华
Original Assignee
深圳市锐明技术股份有限公司
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Publication date
Application filed by 深圳市锐明技术股份有限公司 filed Critical 深圳市锐明技术股份有限公司
Priority to CN201880000208.XA priority Critical patent/CN108700624A/zh
Priority to PCT/CN2018/080233 priority patent/WO2019178842A1/fr
Publication of WO2019178842A1 publication Critical patent/WO2019178842A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/005—Testing of electric installations on transport means
    • G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks

Definitions

  • the invention belongs to the technical field of automobiles, and in particular relates to a vehicle and an in-vehicle monitoring device thereof and a vehicle signal detecting circuit.
  • Vehicle monitoring equipment generally supports vehicle speed pulse signal detection, vehicle door opening signal detection, vehicle door closing signal detection, brake signal detection, and the like. Since the motion-executing components of the vehicle are mostly inductive components, such as solenoid valves, air pumps, and wiper controllers, these components generate surge signals during the operation, and the in-vehicle monitoring device detects the corresponding actions of these components, and the surge signal will Superimposed on the detection signal and input to the in-vehicle monitoring device. Since the voltage of the surge signal can sometimes reach -600V or more, it can sometimes reach 200V or more. Therefore, the detection input of the vehicle monitoring equipment needs to have good surge protection capability.
  • the photoelectric coupling device In order to avoid damage to the vehicle monitoring equipment, the photoelectric coupling device is usually used for isolation processing to avoid the level change of the vehicle detection signal affecting the detection of the signal by the vehicle monitoring device.
  • the isolation processing using the photoelectric coupling device is costly and the circuit design is complicated. .
  • the cost of performing a series of voltage stabilization and filtering processing on the vehicle detection signal is also high and the circuit is complicated and stable. Sex and reliability are also poor.
  • the existing vehicle signal detection circuit has a complicated circuit and a high cost.
  • the embodiment of the invention provides a vehicle, an in-vehicle monitoring device and a vehicle signal detection circuit.
  • An aspect of the present invention provides a vehicle signal detection circuit, including: a detection signal input module, a signal pre-processing module, a reference voltage generation module, a voltage comparison module, and a main control module;
  • An output end of the detection signal input module is connected to an input end of the signal pre-processing module, and an output end of the signal pre-processing module is connected to a first input end of the voltage comparison module, where the reference voltage generating module The output end is connected to the second input end of the voltage comparison module, the controlled end of the reference voltage generating module is connected to the main control module, and the output end of the voltage comparison module is connected to the main control module;
  • the detection signal input module collects a detection signal of the vehicle and outputs the received detection signal to the signal pre-processing module, and the signal pre-processing module performs a surge protection process and a voltage conversion process on the received detection signal, and the output is stable.
  • the reference voltage generation module generates a corresponding reference voltage according to the threshold adjustment signal of the main control module, and outputs a reference voltage to the voltage comparison module, where the voltage comparison module compares the voltage to be compared Comparing with the reference voltage to generate a comparison result
  • the main control module collects the comparison result, and analyzes the state of the vehicle according to the comparison result, and stores, displays, and reports the state of the vehicle.
  • Another aspect of the present invention also provides an in-vehicle monitoring device including the above-described vehicle signal detecting circuit.
  • Another aspect of the present invention also provides an automobile comprising the above-described vehicle signal detecting circuit or the above-described vehicle monitoring device.
  • the automobile provided by the invention and the vehicle monitoring device and the vehicle signal detecting circuit perform the surge protection processing and the voltage conversion processing on the received detection signal through the signal pre-processing module, and output a stable voltage-to-voltage comparison module to be compared, thereby effectively preventing The surge causes circuit damage.
  • the voltage comparison module compares the voltage to be compared with the reference voltage to produce a comparison result, realizes wide voltage input and comparison of the multi-path signal, and the main control module collects the comparison result, and analyzes the state of the vehicle according to the comparison result.
  • the main control module adjusts the reference voltage according to needs to meet the voltage comparison requirements of various vehicles, and effectively solves the problem of complicated circuit and high cost existing in the existing vehicle signal detection circuit.
  • FIG. 1 is a block diagram of a vehicle signal detecting circuit according to an embodiment of the present invention.
  • FIG. 2 is a block diagram of a vehicle signal detecting circuit according to another embodiment of the present invention.
  • FIG. 3 is a block diagram of a vehicle signal detecting circuit according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a circuit of a signal pre-processing unit 121 according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a circuit structure of a reference voltage generating module 130 according to an embodiment of the present invention.
  • the present invention provides a vehicle, an in-vehicle monitoring device and a vehicle signal detecting circuit, and the received detection signal is received by the signal pre-processing module.
  • a stable voltage-to-voltage comparison module to be compared is output to effectively prevent the circuit from being damaged by the surge, and the voltage comparison module compares the voltage to be compared with the reference voltage to generate a comparison result, thereby realizing a multi-channel signal.
  • the main control module collects the comparison result, and analyzes the state of the vehicle according to the comparison result, and uses the main control module to adjust the reference voltage according to the needs to meet the voltage comparison requirements of various vehicles, effectively solving the existing
  • the vehicle signal detection circuit has a complicated circuit and a high cost problem.
  • FIG. 1 shows a vehicle signal detection circuit provided by the embodiment.
  • the vehicle signal detection circuit includes a detection signal input module 110, a signal pre-processing module 120, a reference voltage generation module 130, a voltage comparison module 140, and a main control module 150.
  • the output end of the detection signal input module 110 is connected to the input end of the signal pre-processing module 120, the output end of the signal pre-processing module 120 is connected to the first input end of the voltage comparison module 140, and the output end of the reference voltage generation module 130 is compared with the voltage.
  • the second input end of the module 140 is connected, the controlled end of the reference voltage generating module 130 is connected to the main control module 150, and the output end of the voltage comparison module 140 is connected to the main control module 150.
  • the detection signal input module 110 collects the detection signal of the vehicle and outputs the received detection signal to the signal pre-processing module 120.
  • the signal pre-processing module 120 performs a surge protection process and a voltage conversion process on the received detection signal, and outputs a stable wait.
  • the reference voltage generation module 130 Comparing the voltage-to-voltage comparison module 140, the reference voltage generation module 130 generates a corresponding reference voltage according to the threshold adjustment signal of the main control module 150, and outputs a reference voltage to the voltage comparison module 140.
  • the voltage comparison module 140 performs the voltage to be compared with the reference voltage. The comparison produces a comparison result, and the main control module 150 collects the comparison result, and analyzes the state of the vehicle according to the comparison result, and stores, displays, and reports the state of the vehicle.
  • the reference voltage generated by the reference voltage generating module 130 is used as the threshold voltage of the voltage comparison module 140, and the relatively stable voltage to be compared processed by the signal preprocessing module 120 is compared with the reference voltage, and the output voltage is output according to the comparison result.
  • Flat signal Exemplarily, if the voltage to be compared is not less than the reference voltage, the voltage comparison module 140 outputs a high level, and if the voltage to be compared is less than the reference voltage, the voltage comparison module 140 outputs a low level.
  • the voltage comparison module 140 described above includes a multi-channel voltage comparator.
  • the multi-channel voltage comparator described above includes a plurality of sets of independent operational amplifiers. When the voltage to be compared input to the operational amplifier is not less than the reference voltage, the operational amplifier outputs a high level, and vice versa.
  • the main control module 150 includes a comparison result collection unit 151 and a main control unit 152.
  • the input end of the comparison result acquisition unit 151 is connected to the output end of the voltage comparison module 140, and the output end of the comparison result acquisition unit 151 is connected to the main control unit 152.
  • the comparison result collecting unit 151 collects the comparison result (high level or low level) output by the voltage comparison module 140, and transmits the comparison result to the main control unit 152, and the main control unit 152 analyzes the state of the vehicle according to the comparison result, and the vehicle The status is stored, displayed, and reported.
  • the state of the vehicle can be analyzed according to the collected comparison result (high level or low level).
  • the comparison result is a high level, indicating that the voltage to be compared is not less than the reference voltage.
  • the detection detection signal indicates the state of the vehicle corresponding to the detection signal. For example, if the comparison result of the channel for detecting whether the door is open is high level, the comparison result of the door of the vehicle opening or detecting whether the door is opened is A low level indicates that the vehicle's door is open.
  • the user can set the comparison threshold by the interactive main control unit 152.
  • the main control unit 152 sends the threshold adjustment signal to the result collection unit 151 according to the comparison threshold set by the user, and the result collection unit 151 sends the threshold adjustment signal again.
  • the reference voltage generation module 130 generates a corresponding reference voltage according to the threshold adjustment signal to meet the comparison requirements of different vehicles.
  • the reference voltage generating module 130 includes a level adjusting unit 131 and a reference voltage output unit 132.
  • the level adjustment unit 131 is connected to the main control module 150, and the reference voltage output unit 132 is connected to the voltage comparison module 140.
  • the level adjusting unit 131 adjusts the magnitude of the reference voltage according to the threshold adjustment signal of the main control module 150, and the reference voltage output unit 132 outputs the generated reference voltage to the voltage comparison module 140.
  • the detection signal input module 110 collects multiple detection signals.
  • vehicle signal detection includes, but is not limited to, vehicle speed pulse signal detection, vehicle door opening signal detection, vehicle door closing signal detection, brake signal detection, and the like.
  • the signal pre-processing module 120 includes a plurality of signal pre-processing units 121, and the circuit pre-processing units 121 have the same circuit structure; the plurality of signal pre-processing units 121 respectively perform surge protection processing on each of the detection signals and Voltage conversion processing.
  • the detection signal input module includes four detection signal inputs
  • the signal pre-processing module 120 includes four signal pre-processing units 121, and each of the signal pre-processing units 121 corresponds to one detection signal.
  • the detection signal is subjected to surge protection processing and voltage conversion processing, and the voltage to be compared of the path is output.
  • the multi-channel voltage comparator U1 internally includes four independent operational amplifiers, each of which inputs a voltage to be compared and a reference voltage corresponding to the path, and compares the voltage to be compared with the reference voltage to output a comparison result. Specifically, when the voltage to be compared input to the operational amplifier is not less than the reference voltage, the operational amplifier outputs a high level, and vice versa.
  • the multi-channel voltage comparator U1 supports simultaneous processing of signals of multiple channels.
  • FIG. 4 is a schematic diagram of a circuit structure of the signal pre-processing unit 121 in the embodiment.
  • the signal pre-processing unit 121 includes: a first resistor R1 and a second resistor R2.
  • the first end of the first resistor R1 is connected to the detection signal input module 110, the second end of the first resistor R1 is connected to the first end of the second resistor R2, and the second end of the second end resistor R2 is grounded, the first capacitor C1 The first end is connected to the second end of the first resistor R1, the second end of the first capacitor C2 is grounded, and the cathode of the first diode D1 is connected to the second end of the first resistor R1, the first diode D1 The positive pole is grounded, and the cathode of the first diode D1 is connected to the voltage comparison module 140.
  • the signal pre-processing module includes four signal pre-processing units 121 having the same circuit structure, and each of the signal pre-processing units 121 corresponds to one detection signal.
  • FIG. 5 is a schematic diagram of a circuit structure of the reference voltage generating module 130 in the embodiment.
  • the reference voltage generating module 130 includes: a third resistor R3 and a fourth resistor R4. a second capacitor C2, a fifth resistor R5, a first switching transistor Q1, and a sixth resistor R6.
  • the first end of the third resistor R3 is connected to the power supply VCC
  • the second end of the third resistor R3 is connected to the first end of the fourth resistor R4, the second end of the fourth resistor R4 is grounded, and the second end of the third resistor R3 Connected to the voltage comparison module 140
  • the first end of the second capacitor C2 is connected to the first end of the fourth resistor R4
  • the second end of the second capacitor C2 is connected to the second end of the fourth resistor R4
  • the fifth resistor R5 is
  • the first end is connected to the first end of the second capacitor C2
  • the second end of the fifth resistor R5 is connected to the first end of the first switch tube Q1, the second end of the first switch tube Q1 is grounded, and the first switch tube Q1
  • the controlled end is connected to the first end of the sixth resistor R6, and the second end of the sixth resistor R6 is connected to the main control module 150.
  • the power supply VCC is a +5V DC power supply.
  • the first switch tube Q1 is an NPN type transistor Q1
  • the base of the NPN type transistor Q1 is a controlled end of the first switch tube Q1
  • the collector of the NPN type transistor Q1 is the first of the first switch tube Q1.
  • the emission of the NPN type transistor Q1 is extremely the second end of the first switching transistor Q1.
  • the signal pre-processing module 120 includes four signal input pre-processing units 121.
  • the first resistor R1 and the second resistor R2 form a voltage dividing circuit, and the relatively high voltage of the external input detection signal is converted to meet the requirements of the back-end chip.
  • the voltage such as converting the input voltage to 36V into a voltage of 5V, in order to ensure that the voltage input to the back-end multi-channel voltage comparator U1 meets the requirements of the chip.
  • the first resistor R1 and the second capacitor C2 form an RC filter circuit, which has a good smoothing and filtering cancellation effect on the externally input short-time transient pulse signal, and effectively prevents damage to the multi-channel voltage comparator U1 at the back end.
  • the resistance of the first resistor R1 is selected from several tens of ohms to hundreds of kilo ohms, and the capacitance of the second capacitor C2 is selected between 10 NF and 100 NF.
  • the first diode D1 can realize negative voltage conduction and voltage clamping, further protecting the multi-channel voltage comparator U1 at the back end, and also avoiding the abnormal operation of the multi-channel voltage comparator U1 when there is a short-time negative pulse signal input. .
  • the third resistor R3 and the fourth resistor R10 in the reference voltage generating module 130 constitute a voltage dividing circuit, and the third resistor R3 and the fifth resistor R5, the first switching transistor Q1 and the sixth resistor R6 constitute a switching circuit. If the main control module outputs a low level, the first switch Q1 is not turned on, and the third resistor R3, the fifth resistor R5, and the first switch Q1 to the ground are disconnected, and the reference voltage is determined by the third resistor R3 and the third The voltage dividing circuit of the four resistor R4 is determined.
  • the first switching transistor Q1 If the main control module outputs a high level, the first switching transistor Q1 is turned on, and the third resistor R3, the fifth resistor R5, and the first switching transistor Q1 are connected to the ground, and the reference voltage is basically the third resistor R3 and the fourth resistor. A voltage dividing circuit composed of R4 and a fifth resistor R5 is determined. Therefore, the reference voltage can be adjusted according to the threshold adjustment signal.
  • the voltage comparison module 140 is mainly composed of a four-channel voltage comparator chip U1 having four independent operational amplifiers inside. If the detection signal input by the vehicle is processed by the signal preprocessing module and the voltage to be compared is higher than the reference voltage, the corresponding operational amplifier output of the channel is a high level, and vice versa is a low level output.
  • the comparison result collecting unit 151 collects the comparison result output by the multi-channel comparator and reports it to the main control unit 152. And according to the result of the human-machine interaction interface setting of the main control unit 152, the reference voltage generated by the reference voltage generating module is dynamically adjusted.
  • the main control unit 152 can also store, display, and report the status of the vehicle.
  • the vehicle signal detecting circuit performs a surge protection process and a voltage conversion process on the received detection signal by the signal pre-processing module, and outputs a stable voltage-to-voltage comparison module to be compared, thereby effectively preventing circuit damage caused by the surge.
  • the voltage comparison module compares the voltage to be compared with the reference voltage to generate a comparison result, realizes wide voltage input and comparison of the multi-path signal, and the main control module collects the comparison result, and analyzes the state of the vehicle according to the comparison result, and utilizes the main control module as needed
  • the reference voltage is adjusted to meet the voltage comparison requirements of various vehicles, the circuit is simple and reliable, and the cost is low, which effectively solves the problem of complicated circuit and high cost of the existing vehicle signal detection circuit.
  • Another embodiment of the present invention provides an in-vehicle monitoring device that is a vehicle signal detecting circuit in the above embodiment.
  • Another embodiment of the present invention provides an automobile including the vehicle signal detecting circuit provided by the above embodiment or the in-vehicle monitoring device provided by the above embodiment.
  • the above-mentioned vehicle signal detecting circuit can also be applied to an in-vehicle device such as a vehicle driving recorder, a passenger flow statistic meter, a driver driving behavior analyzer, and the like, and is not limited herein.
  • an in-vehicle device such as a vehicle driving recorder, a passenger flow statistic meter, a driver driving behavior analyzer, and the like, and is not limited herein.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne une automobile et un dispositif de surveillance monté sur véhicule associé et un circuit de détection de signal de véhicule associé. Le circuit de détection de signal de véhicule comprend : un module d'entrée de signal de détection (110), un module de prétraitement de signal (120), un module de génération de tension de référence (130), un module de comparaison de tension (140), et un module de commande maître (150). Le module de prétraitement de signal (120) effectue un traitement de protection contre les surtensions et un traitement de conversion de tension sur un signal de détection reçu et délivre ensuite une tension stable à comparer parle module de comparaison de tension (140), ce qui permet d'empêcher efficacement un endommagement de circuit provoqué par une surtension ; le module de comparaison de tension (140) compare la tension à comparer à une tension de référence pour produire un résultat de comparaison, en effectuant ainsi une large entrée de tension et la comparaison d'un signal à trajets multiples ; le module de commande maître (150) acquiert le résultat de la comparaison, et analyse l'état d'un véhicule en fonction du résultat de la comparaison. La tension de référence est ajustée en utilisant le module de commande maître (150) en fonction des exigences, de telle sorte que les exigences de comparaison de tension de divers véhicules différents sont satisfaites, et les problèmes de complexité et de coûts élevés d'un circuit de détection de signal de véhicule existant sont résolus.
PCT/CN2018/080233 2018-03-23 2018-03-23 Automobile, et dispositif de surveillance monté sur véhicule et circuit de détection de signal de véhicule associé WO2019178842A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880000208.XA CN108700624A (zh) 2018-03-23 2018-03-23 一种汽车及其车载监控设备、车辆信号检测电路
PCT/CN2018/080233 WO2019178842A1 (fr) 2018-03-23 2018-03-23 Automobile, et dispositif de surveillance monté sur véhicule et circuit de détection de signal de véhicule associé

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Application Number Priority Date Filing Date Title
PCT/CN2018/080233 WO2019178842A1 (fr) 2018-03-23 2018-03-23 Automobile, et dispositif de surveillance monté sur véhicule et circuit de détection de signal de véhicule associé

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113341779A (zh) * 2020-03-02 2021-09-03 纬湃科技投资(中国)有限公司 轻混整车系统及其地偏移检测装置
CN113665506A (zh) * 2021-08-18 2021-11-19 远峰科技股份有限公司 基于can网络检测的车载设备控制方法及系统

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109638911B (zh) * 2018-12-14 2020-08-25 珠海市杰理科技股份有限公司 充电通信电路、系统、方法、智能终端及其配件
CN111824045B (zh) * 2020-07-14 2023-05-12 上海创功通讯技术有限公司 一种车载设备的接口组件及车载设备
CN113050610B (zh) * 2021-03-31 2022-06-03 上海拿森汽车电子有限公司 一种状态检测装置及车辆
CN113238545B (zh) * 2021-04-30 2022-12-20 珠海格力电器股份有限公司 一种整车控制器激活信号检测装置、整车控制器和车辆
CN113985118A (zh) * 2021-10-29 2022-01-28 东风汽车有限公司东风日产乘用车公司 车载电流故障检测装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101762777A (zh) * 2010-01-21 2010-06-30 上海大学 电力变压器局部放电在线检测和定位系统
CN203368728U (zh) * 2013-07-02 2013-12-25 华平信息技术股份有限公司 一种声音控制装置
CN203398780U (zh) * 2013-07-31 2014-01-15 山东超越数控电子有限公司 一种车载防浪涌电压保护装置
CN203506715U (zh) * 2013-10-09 2014-04-02 复旦大学 便携式低功耗同步12导联数字心电图机
JP2016134010A (ja) * 2015-01-20 2016-07-25 株式会社デンソー 電源監視回路
US20170245379A1 (en) * 2016-02-23 2017-08-24 Samsung Display Co., Ltd. Short detection circuit and display device including the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104916003A (zh) * 2014-03-13 2015-09-16 深圳市赛格导航科技股份有限公司 一种车辆监控方法和系统
CN105974897A (zh) * 2016-06-07 2016-09-28 哈尔滨工业大学 车辆分布式多级健康状态监测系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101762777A (zh) * 2010-01-21 2010-06-30 上海大学 电力变压器局部放电在线检测和定位系统
CN203368728U (zh) * 2013-07-02 2013-12-25 华平信息技术股份有限公司 一种声音控制装置
CN203398780U (zh) * 2013-07-31 2014-01-15 山东超越数控电子有限公司 一种车载防浪涌电压保护装置
CN203506715U (zh) * 2013-10-09 2014-04-02 复旦大学 便携式低功耗同步12导联数字心电图机
JP2016134010A (ja) * 2015-01-20 2016-07-25 株式会社デンソー 電源監視回路
US20170245379A1 (en) * 2016-02-23 2017-08-24 Samsung Display Co., Ltd. Short detection circuit and display device including the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113341779A (zh) * 2020-03-02 2021-09-03 纬湃科技投资(中国)有限公司 轻混整车系统及其地偏移检测装置
CN113341779B (zh) * 2020-03-02 2023-06-16 纬湃科技投资(中国)有限公司 轻混整车系统及其地偏移检测装置
CN113665506A (zh) * 2021-08-18 2021-11-19 远峰科技股份有限公司 基于can网络检测的车载设备控制方法及系统

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