WO2013082786A1 - Dual-mode vehicle detection sensor - Google Patents
Dual-mode vehicle detection sensor Download PDFInfo
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- WO2013082786A1 WO2013082786A1 PCT/CN2011/083706 CN2011083706W WO2013082786A1 WO 2013082786 A1 WO2013082786 A1 WO 2013082786A1 CN 2011083706 W CN2011083706 W CN 2011083706W WO 2013082786 A1 WO2013082786 A1 WO 2013082786A1
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/065—Traffic control systems for road vehicles by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count
Definitions
- the present invention relates to a traffic sensor, and more particularly to a vehicle detection sensor. Background technique
- Intelligent traffic management system is an effective means to optimize traffic operation, mitigate traffic congestion, and make full use of road resources.
- Vehicle detection sensors are important and basic information gathering devices for intelligent traffic management systems.
- the commonly used vehicle detection sensors are mainly mutual inductance coil sensors. Due to their inconvenient installation, easy damage, and inability to identify models, they cannot be used in future intelligent transportation systems as a traffic data collector covering a wide range of streets and highways. Therefore, replacing an existing backward sensing system with an advanced, stable and accurate sensing system has become an urgent problem to be solved.
- the latest wireless geomagnetic traffic sensor is emerging for it. It has the characteristics of convenient installation, low cost, convenient maintenance, small amount of data, no weather influence, can measure the model, and can be networked.
- Wireless geomagnetic traffic sensors are usually buried under the road surface, and the vehicle is detected by the disturbance of the earth's magnetic field caused by the passage of the vehicle, thereby obtaining the traffic information of the vehicle.
- the vehicle is detected by the disturbance of the earth's magnetic field caused by the passage of the vehicle, thereby obtaining the traffic information of the vehicle.
- it is buried under the road surface and uses wireless communication, in order to maintain a long working time, it is generally powered by multiple batteries, which will cause the sensor to be bulky and damage the road surface;
- On the one hand there is also the need to replace the battery.
- the time period for replacing the battery is also shortened, which causes trouble for use. Increased maintenance costs.
- the object of the present invention is achieved by the following technical solutions:
- a dual mode vehicle detection sensor comprises a geomagnetic sensor module, a detection signal processor module, a controller module, a wired interface module, a wireless interface module and a battery charger module, wherein the geomagnetic sensor module passes the signal line and the detection signal processor module
- the detection signal processor module is connected to the controller module through a signal line, and the controller module is respectively connected to the wired interface module and the wireless interface module through a signal line, and the wired interface module further passes the power supply line and the controller module.
- the detection signal processor module, the geomagnetic sensor module, and the battery charger module are connected.
- the wired interface module is a TTL level interface, an RS485 interface, an RS232 interface or a USB interface.
- the wireless interface module uses WiFi or Zigbee wireless communication.
- the wired interface module and the wireless interface module may be used alone or simultaneously.
- the working principle of the invention is: the geomagnetic sensor module transmits the detection signal generated by the detection vehicle to the detection signal processor module, the detection signal processor module processes the detection signal, and transmits the generated interface signal containing at least information on the presence or absence of the vehicle.
- the controller module controls the command communication of the present invention with the peripheral cable signal receiver or/and the wireless signal receiver.
- the invention has the beneficial effects that: by adding a wired function to the existing wireless geomagnetic traffic sensor, the sensor can be powered by an external power source, thereby enhancing the ability of the sensor to adapt to different power consumption, eliminating or reducing the use of the battery, and effectively reducing the size. The size of the sensor itself eliminates or reduces the hassle of replacing the battery.
- the added wired function can also ensure the real-time output of the signal, which brings additional application functions, such as the output signal as other high-definition capture machine. Control signals of traffic processing systems, etc.
- FIG. 1 is a block diagram showing the structure of a dual mode vehicle detecting sensor of the present invention.
- FIG. 2 is a schematic diagram showing the structure of a module when the wireless working mode is used in the present invention.
- Fig. 3 is a block diagram showing the structure of the module in the wired operation mode of the present invention and when the battery is mounted.
- Fig. 4 is a block diagram showing the configuration of a module in which the wired and wireless operation modes of the present invention are used and the battery is not mounted.
- geomagnetic sensor module 1, detection signal processor module; 3, controller module; 4, wired interface module; 5, wireless interface module; 6, battery charger module; 7, battery; 7a, rechargeable Battery; 8, wired signal receiver; 9, external power supply; 10, wireless signal receiver.
- the dual mode vehicle detection sensor of the present invention comprises a geomagnetic sensor module 1, a detection signal processor module 2, a controller module 3, a wired interface module 4, a wireless interface module 5 and a battery charger module 6,
- the geomagnetic sensor module 1 is connected to the detection signal processor module 2 via a signal line
- the detection signal processor module 2 is connected to the controller module 3 via a signal line
- the controller module 3 is respectively connected to the wired interface module 4 via a signal line.
- Connected to the wireless interface module 5, the wired interface module 4 is also connected to the controller module 3, the detection signal processor module 2, the geomagnetic sensor module 1 and the battery charger module 6 via a power supply line.
- the wired interface module 4 is a TTL level interface, an RS485 interface, an RS232 interface or a USB interface.
- the wireless interface module 5 uses WiFi or Zigbee wireless communication.
- the method of use of the present invention is as follows: As shown in FIG. 2, when only the wireless working mode needs to be used, it is only necessary to put the battery 7 in the battery charger module 6, and then embed the dual mode vehicle detecting sensor of the present invention on the road. Under the road surface, the wireless signal receiver 10 is set in the dual mode vehicle detection sensor wireless signal Within working distance. At this time, the battery 7 supplies power to the controller module 3, the detection signal processor module 2, and the geomagnetic sensor module 1, and the interface signal is transmitted to the wireless signal receiver 10 through the wireless interface module 5. As shown in FIG. 3, when only the wired working mode is required, the present invention is connected to the wired signal receiver 8 and the external power source 9 through its wired interface module 4 and necessary signal lines and power lines, and the battery charger module thereof.
- the rechargeable battery 7a may be installed in 6 or the rechargeable battery 7a may not be mounted, and then the dual mode vehicle detecting sensor of the present invention is buried under the road surface.
- the external power source 9 supplies power to the controller module 3, the detection signal processor module 2, and the electromagnetic sensor module 1.
- the battery charger module 6 also charges the rechargeable battery 7a, the interface The signal is sent to the wired signal receiver 8 through the wired interface module 4 and the signal line. Since the interface signal of the wired working mode can be output in real time, the interface signal of the real-time output can be provided to other intelligent traffic processing systems for use as a control signal, such as a snap control signal of the high-definition capture machine.
- the present invention is connected to the wired signal receiver 8 and the external power source 9 through its wired interface module 4 and necessary signal lines and power lines, and the battery charger thereof.
- the rechargeable battery 7a may be installed in the module 6, or the rechargeable battery 7a may not be installed.
- the dual mode vehicle detection sensor of the present invention is embedded under the road surface, and the wireless signal receiver 10 is set in the dual mode vehicle detection sensor wireless signal.
- the external power source 9 supplies power to the controller module 3, the detection signal processor module 2, and the electromagnetic sensor module 1.
- the battery charger module 6 also charges the rechargeable battery 7a, and the interface The signal is sent to the wired signal receiver 8 through the wired interface module 4 and the signal line, and simultaneously transmitted to the wireless signal receiver 10 through the wireless interface module 5.
- the invention solves the problem that the existing wireless geomagnetic traffic sensor is large in size and needs to be replaced frequently, has the capability of adapting to different power consumption, has small volume, does not need to replace the battery or replace the battery with low frequency,
- the wired working mode guarantees the real-time output of the signal and brings the advantages of additional application functions.
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Abstract
Description
双模式车辆检测传感器 技术领域 本发明涉及一种交通传感器， 特别是涉及一种车辆检测传感器。 背景技术 TECHNICAL FIELD The present invention relates to a traffic sensor, and more particularly to a vehicle detection sensor. Background technique
智能化交通管理系统是优化交通运行、 緩和交通阻塞、 充分利用道路资源 的有效手段， 而车辆检测传感器则是智能化交通管理系统的重要而又基础的信 息釆集装置。 目前， 常用的车辆检测传感器主要是互感线圈传感器， 由于其安 装不便、 容易损坏、 不能识别车型等原因， 不能用于未来的智能交通运输系统 中作为大范围覆盖街道和公路的交通数据釆集器， 所以， 用一种先进的、 稳定 准确的传感系统代替现有的落后的传感系统就成为一个亟待解决的问题。 最新 的无线地磁交通传感器正为其应运而生， 它具有安装方便、 成本低、 维护方便、 数据量小、 不受气候影响、 可以测量车型、 可以组网的特点。 无线地磁交通传 感器通常埋设在道路路面下， 利用车辆经过时引起的对地球磁场的扰动来检测 车辆， 从而获取车辆的交通信息。 不过， 由于其埋在道路路面下， 且釆用无线 通讯的方式， 为了能够维持较长的工作时间， 一般釆用多节电池供电， 这样一 方面会造成传感器的体积较大， 破坏路面； 另一方面， 也还存在需要更换电池 的麻烦， 尤其在交通频繁、 无线地磁交通传感器通讯频繁的地方， 它耗电较快， 因此， 更换电池的时间周期也缩短， 这给使用带来了麻烦， 增加了维护成本。 发明内容 本发明的目的是提供一种双模式车辆检测传感器， 以解决现有无线地磁交 通传感器体积大， 且需频繁更换电池的问题。 本发明的目的是通过以下技术方案来实现的： Intelligent traffic management system is an effective means to optimize traffic operation, mitigate traffic congestion, and make full use of road resources. Vehicle detection sensors are important and basic information gathering devices for intelligent traffic management systems. At present, the commonly used vehicle detection sensors are mainly mutual inductance coil sensors. Due to their inconvenient installation, easy damage, and inability to identify models, they cannot be used in future intelligent transportation systems as a traffic data collector covering a wide range of streets and highways. Therefore, replacing an existing backward sensing system with an advanced, stable and accurate sensing system has become an urgent problem to be solved. The latest wireless geomagnetic traffic sensor is emerging for it. It has the characteristics of convenient installation, low cost, convenient maintenance, small amount of data, no weather influence, can measure the model, and can be networked. Wireless geomagnetic traffic sensors are usually buried under the road surface, and the vehicle is detected by the disturbance of the earth's magnetic field caused by the passage of the vehicle, thereby obtaining the traffic information of the vehicle. However, because it is buried under the road surface and uses wireless communication, in order to maintain a long working time, it is generally powered by multiple batteries, which will cause the sensor to be bulky and damage the road surface; On the one hand, there is also the need to replace the battery. Especially in places where traffic is frequent and wireless geomagnetic traffic sensors communicate frequently, it consumes a lot of power. Therefore, the time period for replacing the battery is also shortened, which causes trouble for use. Increased maintenance costs. SUMMARY OF THE INVENTION It is an object of the present invention to provide a dual mode vehicle detection sensor to solve the problem that the existing wireless geomagnetic traffic sensor is bulky and requires frequent replacement of the battery. The object of the present invention is achieved by the following technical solutions:
一种双模式车辆检测传感器， 包括地磁传感器模块、检测信号处理器模块、 控制器模块、 有线接口模块、 无线接口模块和电池充电器模块， 所述地磁传感 器模块通过信号线路与检测信号处理器模块连接， 所述检测信号处理器模块通 过信号线路与控制器模块连接， 所述控制器模块通过信号线路分别与有线接口 模块和无线接口模块连接， 所述有线接口模块还通过供电线路与控制器模块、 检测信号处理器模块、 地磁传感器模块和电池充电器模块连接。 A dual mode vehicle detection sensor comprises a geomagnetic sensor module, a detection signal processor module, a controller module, a wired interface module, a wireless interface module and a battery charger module, wherein the geomagnetic sensor module passes the signal line and the detection signal processor module The detection signal processor module is connected to the controller module through a signal line, and the controller module is respectively connected to the wired interface module and the wireless interface module through a signal line, and the wired interface module further passes the power supply line and the controller module. The detection signal processor module, the geomagnetic sensor module, and the battery charger module are connected.
优选地， 所述有线接口模块为 TTL电平接口、 RS485接口、 RS232接口或 USB接口。 Preferably, the wired interface module is a TTL level interface, an RS485 interface, an RS232 interface or a USB interface.
优选地， 所述无线接口模块釆用 WiFi或 Zigbee无线通讯方式。 Preferably, the wireless interface module uses WiFi or Zigbee wireless communication.
所述有线接口模块和无线接口模块可以单独使用， 也可以同时使用。 The wired interface module and the wireless interface module may be used alone or simultaneously.
本发明的工作原理为： 地磁传感器模块将检测车辆产生的检测信号传递到 检测信号处理器模块， 检测信号处理器模块处理检测信号， 并将生成的至少包 含车辆存在与否的信息的接口信号传递到控制器模块， 由控制器模块对本发明 与外设有线信号接收器或 /和无线信号接收器的指令通讯进行控制。 本发明的有益效果为： 通过在现有无线地磁交通传感器的基础上增加有线 功能， 使传感器可由外部电源供电， 增强了传感器适应不同电力消耗的能力， 免除或减少了电池的使用， 有效地缩小了传感器自身的体积， 免除或减少了更 换电池的麻烦， 同时， 增加的有线功能还可保证信号的实时输出， 从而带来额 外的其他应用功能， 如将输出的信号作为高清抓拍机等其他智能交通处理系统 的控制信号等。 附图说明 下面根据附图和实施例对本发明作进一步详细说明。 The working principle of the invention is: the geomagnetic sensor module transmits the detection signal generated by the detection vehicle to the detection signal processor module, the detection signal processor module processes the detection signal, and transmits the generated interface signal containing at least information on the presence or absence of the vehicle. To the controller module, the controller module controls the command communication of the present invention with the peripheral cable signal receiver or/and the wireless signal receiver. The invention has the beneficial effects that: by adding a wired function to the existing wireless geomagnetic traffic sensor, the sensor can be powered by an external power source, thereby enhancing the ability of the sensor to adapt to different power consumption, eliminating or reducing the use of the battery, and effectively reducing the size. The size of the sensor itself eliminates or reduces the hassle of replacing the battery. At the same time, the added wired function can also ensure the real-time output of the signal, which brings additional application functions, such as the output signal as other high-definition capture machine. Control signals of traffic processing systems, etc. DRAWINGS The invention will now be described in further detail with reference to the drawings and embodiments.
图 1是本发明的双模式车辆检测传感器的模块结构示意图。 1 is a block diagram showing the structure of a dual mode vehicle detecting sensor of the present invention.
图 2是本发明仅釆用无线工作模式时的模块结构示意图。 2 is a schematic diagram showing the structure of a module when the wireless working mode is used in the present invention.
图 3是本发明的仅釆用有线工作模式且安装电池时的模块结构示意图。 图 4是本发明的釆用有线兼无线工作模式且未安装电池时的模块结构示意 图。 Fig. 3 is a block diagram showing the structure of the module in the wired operation mode of the present invention and when the battery is mounted. Fig. 4 is a block diagram showing the configuration of a module in which the wired and wireless operation modes of the present invention are used and the battery is not mounted.
图中： 1、 地磁传感器模块； 2、 检测信号处理器模块； 3、 控制器模块； 4、 有线接口模块； 5、 无线接口模块； 6、 电池充电器模块； 7、 电池； 7a、 可充电 电池； 8、 有线信号接收器； 9、 外部电源； 10、 无线信号接收器。 In the figure: 1, geomagnetic sensor module; 2, detection signal processor module; 3, controller module; 4, wired interface module; 5, wireless interface module; 6, battery charger module; 7, battery; 7a, rechargeable Battery; 8, wired signal receiver; 9, external power supply; 10, wireless signal receiver.
具体实施方式 detailed description
如图 1 所示， 本发明的双模式车辆检测传感器， 包括地磁传感器模块 1、 检测信号处理器模块 2、 控制器模块 3、 有线接口模块 4、 无线接口模块 5和电 池充电器模块 6,所述地磁传感器模块 1通过信号线路与检测信号处理器模块 2 连接， 所述检测信号处理器模块 2通过信号线路与控制器模块 3连接， 所述控 制器模块 3通过信号线路分别与有线接口模块 4和无线接口模块 5连接， 所述 有线接口模块 4还通过供电线路与控制器模块 3、检测信号处理器模块 2、 地磁 传感器模块 1和电池充电器模块 6连接。 As shown in FIG. 1, the dual mode vehicle detection sensor of the present invention comprises a geomagnetic sensor module 1, a detection signal processor module 2, a controller module 3, a wired interface module 4, a wireless interface module 5 and a battery charger module 6, The geomagnetic sensor module 1 is connected to the detection signal processor module 2 via a signal line, the detection signal processor module 2 is connected to the controller module 3 via a signal line, and the controller module 3 is respectively connected to the wired interface module 4 via a signal line. Connected to the wireless interface module 5, the wired interface module 4 is also connected to the controller module 3, the detection signal processor module 2, the geomagnetic sensor module 1 and the battery charger module 6 via a power supply line.
优选地， 所述有线接口模块 4为 TTL电平接口、 RS485接口、 RS232接口 或 USB接口。 Preferably, the wired interface module 4 is a TTL level interface, an RS485 interface, an RS232 interface or a USB interface.
优选地， 所述无线接口模块 5釆用 WiFi或 Zigbee无线通讯方式。 Preferably, the wireless interface module 5 uses WiFi or Zigbee wireless communication.
本发明的使用方法为： 如图 2所示， 当仅需釆用无线工作模式时， 只需在 电池充电器模块 6 内放入电池 7 , 然后将本发明的双模式车辆检测传感器埋设 在道路路面下，将无线信号接收器 10设置在双模式车辆检测传感器无线信号的 工作距离内。 此时， 电池 7为控制器模块 3、 检测信号处理器模块 2和地磁传 感器模块 1供电， 接口信号通过无线接口模块 5发送到无线信号接收器 10。 如图 3所示， 当仅需釆用有线工作模式时， 将本发明通过其有线接口模块 4及必要的信号线和电源线与有线信号接收器 8和外部电源 9连接， 其电池充 电器模块 6内可安装可充电电池 7a, 也可不安装可充电电池 7a, 然后， 将本发 明的双模式车辆检测传感器埋设在道路路面下。 此时， 外部电源 9为控制器模 块 3、 检测信号处理器模块 2和电磁传感器模块 1供电， 在安装可充电电池 7a 的情况下， 电池充电器模块 6还对可充电电池 7a进行充电， 接口信号通过有线 接口模块 4及信号线发送到有线信号接收器 8。 由于有线工作模式的接口信号 可实时输出， 故可将该实时输出的接口信号提供给其他的智能交通处理系统作 为控制信号使用， 如作为高清抓拍机的抓拍控制信号等。 The method of use of the present invention is as follows: As shown in FIG. 2, when only the wireless working mode needs to be used, it is only necessary to put the battery 7 in the battery charger module 6, and then embed the dual mode vehicle detecting sensor of the present invention on the road. Under the road surface, the wireless signal receiver 10 is set in the dual mode vehicle detection sensor wireless signal Within working distance. At this time, the battery 7 supplies power to the controller module 3, the detection signal processor module 2, and the geomagnetic sensor module 1, and the interface signal is transmitted to the wireless signal receiver 10 through the wireless interface module 5. As shown in FIG. 3, when only the wired working mode is required, the present invention is connected to the wired signal receiver 8 and the external power source 9 through its wired interface module 4 and necessary signal lines and power lines, and the battery charger module thereof. The rechargeable battery 7a may be installed in 6 or the rechargeable battery 7a may not be mounted, and then the dual mode vehicle detecting sensor of the present invention is buried under the road surface. At this time, the external power source 9 supplies power to the controller module 3, the detection signal processor module 2, and the electromagnetic sensor module 1. In the case where the rechargeable battery 7a is mounted, the battery charger module 6 also charges the rechargeable battery 7a, the interface The signal is sent to the wired signal receiver 8 through the wired interface module 4 and the signal line. Since the interface signal of the wired working mode can be output in real time, the interface signal of the real-time output can be provided to other intelligent traffic processing systems for use as a control signal, such as a snap control signal of the high-definition capture machine.
如图 4所示， 当需釆用有线兼无线工作模式时， 将本发明通过其有线接口 模块 4及必要的信号线和电源线与有线信号接收器 8和外部电源 9连接， 其电 池充电器模块 6内可安装可充电电池 7a, 也可不安装可充电电池 7a, 然后， 将 本发明的双模式车辆检测传感器埋设在道路路面下，将无线信号接收器 10设置 在双模式车辆检测传感器无线信号的工作距离内。 此时， 外部电源 9为控制器 模块 3、 检测信号处理器模块 2和电磁传感器模块 1供电， 在安装可充电电池 7a的情况下， 电池充电器模块 6还对可充电电池 7a进行充电，接口信号通过有 线接口模块 4及信号线发送到有线信号接收器 8 , 同时通过无线接口模块 5发 送到无线信号接收器 10。 As shown in FIG. 4, when the wired and wireless working mode is required, the present invention is connected to the wired signal receiver 8 and the external power source 9 through its wired interface module 4 and necessary signal lines and power lines, and the battery charger thereof. The rechargeable battery 7a may be installed in the module 6, or the rechargeable battery 7a may not be installed. Then, the dual mode vehicle detection sensor of the present invention is embedded under the road surface, and the wireless signal receiver 10 is set in the dual mode vehicle detection sensor wireless signal. Within working distance. At this time, the external power source 9 supplies power to the controller module 3, the detection signal processor module 2, and the electromagnetic sensor module 1. In the case where the rechargeable battery 7a is mounted, the battery charger module 6 also charges the rechargeable battery 7a, and the interface The signal is sent to the wired signal receiver 8 through the wired interface module 4 and the signal line, and simultaneously transmitted to the wireless signal receiver 10 through the wireless interface module 5.
本发明解决了现有无线地磁交通传感器体积大，且需频繁更换电池的问题， 具有适应不同电力消耗的能力强、 体积小、 无需更换电池或更换电池频次低、 有线工作模式下可保证信号实时输出且可带来额外应用功能的优点。 The invention solves the problem that the existing wireless geomagnetic traffic sensor is large in size and needs to be replaced frequently, has the capability of adapting to different power consumption, has small volume, does not need to replace the battery or replace the battery with low frequency, The wired working mode guarantees the real-time output of the signal and brings the advantages of additional application functions.
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| Application Number | Priority Date | Filing Date | Title |
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| PCT/CN2011/083706 WO2013082786A1 (en) | 2011-12-08 | 2011-12-08 | Dual-mode vehicle detection sensor |
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| PCT/CN2011/083706 WO2013082786A1 (en) | 2011-12-08 | 2011-12-08 | Dual-mode vehicle detection sensor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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