技术领域technical field
本发明涉及车辆安全技术领域，特别是涉及一种用于车辆的儿童安全监控方法。The invention relates to the technical field of vehicle safety, in particular to a child safety monitoring method for vehicles.
背景技术Background technique
车辆作为人们现今出行的主要工具，安全被上升到了第一位，人们针对行车安全做出了很多的改进，但是却在一定程度上忽略了驻车之后的车内安全，例如，日前所出现的乘员车内休息导致窒息甚至死亡就是典型的驻车后安全问题。Vehicles are the main tool for people to travel today, and safety has been raised to the first place. People have made a lot of improvements to driving safety, but to a certain extent, they have ignored the safety inside the car after parking. For example, the recently appeared Asphyxiation or even death caused by occupants resting in the car is a typical safety problem after parking.
再有，现代人工作忙、任务多，生活节奏快，健忘已成了一种常态。曾有报道婴儿在车内睡着，结果驾乘人员下车忘了将其遗忘，结果因时间过长，婴儿在密闭的车内出现脱水、缺氧等状况，最终导致惨剧的发生。在当人们反省父母或驾乘人员的责任时，作为车辆制造商则应该改进车辆功能，增加车辆内部安全监控，提高驻车后的车辆安全性能，规避此类风险。In addition, modern people are busy with work, many tasks, and a fast-paced life, so forgetfulness has become a normal state. It was reported that a baby fell asleep in the car, but the driver and passengers forgot to forget it when they got out of the car. As a result, the baby was dehydrated and hypoxic in the closed car for too long, which eventually led to a tragedy. When people reflect on the responsibilities of their parents or drivers, as a vehicle manufacturer, they should improve vehicle functions, increase vehicle internal safety monitoring, improve vehicle safety performance after parking, and avoid such risks.
有鉴于此，本发明提供了一种用于车辆的儿童安全监控方法以克服或尽可能避免上述问题的发生。In view of this, the present invention provides a child safety monitoring method for vehicles to overcome or avoid the occurrence of the above problems as much as possible.
发明内容Contents of the invention
本发明的一个目的是要提供一种用于车辆的儿童安全监控方法，能够对车辆锁止后儿童留置车中的情况予以自动检测，并能够实现告警提醒，提高车辆安全性。An object of the present invention is to provide a child safety monitoring method for vehicles, which can automatically detect the situation of children left in the vehicle after the vehicle is locked, and can realize alarm reminders to improve vehicle safety.
特别地，本发明提供了一种用于车辆的儿童安全监控系统，包括：In particular, the present invention provides a child safety monitoring system for a vehicle, comprising:
车辆状态检测装置，用于检测车辆状态并反馈；和A vehicle state detection device for detecting the state of the vehicle and giving feedback; and
车辆监控控制器，接收所述车辆状态监控装置所返回的检测数据，并根据所述检测数据发出控制指令至执行单元，控制所述执行单元工作；The vehicle monitoring controller receives the detection data returned by the vehicle state monitoring device, and sends a control instruction to the execution unit according to the detection data, and controls the execution unit to work;
其中，所述车辆状态检测装置包括安全带插入检测装置和称重传感器，所述安全带插入检测装置用于检测判断安全带的插入情况，所述称重传感器设于车辆内座椅下方，用于检测座椅重量，所述车辆监控控制器在判断得出车内乘员状态后控制所述执行单元的工作。Wherein, the vehicle state detection device includes a seat belt insertion detection device and a load cell, the seat belt insertion detection device is used to detect and judge the insertion of the seat belt, and the load cell is arranged under the seat in the vehicle for use In order to detect the weight of the seat, the vehicle monitoring controller controls the work of the execution unit after determining the status of the occupants in the vehicle.
进一步地，所述安全带插入检测装置设于儿童安全座椅旁的安全带处，在车门关闭后如检测到所述儿童安全座椅的所述安全带处于插入状态，则所述车辆监控控制器控制所述执行单元发出警报信号。Further, the safety belt insertion detection device is arranged at the safety belt next to the child safety seat, and if it is detected that the safety belt of the child safety seat is in the inserted state after the door is closed, the vehicle monitoring control The controller controls the execution unit to send out an alarm signal.
进一步地，所述车辆监控控制器内配置有座椅重量阈值，如果所述称重传感器检测到的所述座椅重量在所述座椅重量阈值内则所述车辆监控控制器控制所述执行单元发出警报信号。Further, the vehicle monitoring controller is configured with a seat weight threshold, and if the seat weight detected by the load cell is within the seat weight threshold, the vehicle monitoring controller controls the execution The unit emits an alarm signal.
进一步地，所述称重传感器在所述安全带插入检测装置的检测结束后启动工作，在车门关闭后如所述安全带插入检测装置检测到所述儿童安全座椅的所述安全带处于未插入状态，再启动所述称重传感器进行工作。Further, the load cell starts to work after the detection of the safety belt insertion detection device is completed, and after the door is closed, if the safety belt insertion detection device detects that the seat belt of the child safety seat is not in the Insert the state, and then start the load cell to work.
进一步地，所述车辆状态检测装置包括被动红外探测器，所述被动红外探测器用于检测车内红外辐射状态，并将所述红外辐射状态的检测信号发送至所述车辆监控控制器作为判断车内是否有儿童的依据。Further, the vehicle state detection device includes a passive infrared detector, the passive infrared detector is used to detect the infrared radiation state in the vehicle, and sends the detection signal of the infrared radiation state to the vehicle monitoring controller as a judgment vehicle Whether there are children in the basis.
进一步地，所述车辆监控控制器判断所述车内红外辐射状态为人体温度时，比较车内环境温度与人体温度的差值，如两者之间的变化值大于5℃，则所述车辆监控控制器控制所述执行单元工作并报警。Further, when the vehicle monitoring controller judges that the infrared radiation state in the vehicle is human body temperature, it compares the difference between the ambient temperature in the vehicle and the human body temperature, and if the difference between the two is greater than 5°C, the vehicle The monitoring controller controls the execution unit to work and gives an alarm.
进一步地，所述被动红外探测器设于车辆内部，设置在车顶中间位置。Further, the passive infrared detector is arranged inside the vehicle, at the middle position of the roof.
进一步地，所述被动红外探测器的检测波长为9.5μm至10.5μm。Further, the detection wavelength of the passive infrared detector is 9.5 μm to 10.5 μm.
进一步地，还包括车辆闭锁装置，所述车辆状态检测装置和所述车辆监控控制器在所述车辆闭锁装置完成闭锁工作后被启动。Further, a vehicle locking device is also included, and the vehicle state detection device and the vehicle monitoring controller are activated after the vehicle locking device completes the locking work.
进一步地，所述执行单元包括车窗升降控制器、车灯控制器、喇叭控制器、车载呼叫系统中的一个或多个。Further, the execution unit includes one or more of a window lift controller, a car light controller, a horn controller, and a car calling system.
本发明的儿童安全监控系统，用于车辆，结合儿童体征和常规儿童安全措施，通过对安全带插入情况及座椅重量分布情况进行检测，能够较为方便快速地实现对车内儿童留置情况进行判断，再通过执行单元做出儿童被锁车内的报警动作，通过提醒家长或路人注意车内有锁住和遗忘的儿童，以避免因家长疏忽大意，导致儿童被锁车内的悲剧发生，且本系统结构简单，可靠性高，且投入成本也较低。The child safety monitoring system of the present invention is used in vehicles, and combined with children's physical signs and conventional child safety measures, by detecting the seat belt insertion and seat weight distribution, it can more conveniently and quickly realize the judgment on the indwelling situation of children in the vehicle , and then make an alarm action for children locked in the car through the execution unit, by reminding parents or passers-by to pay attention to locked and forgotten children in the car, so as to avoid the tragedy of children locked in the car due to the negligence of parents, and The system is simple in structure, high in reliability and low in input cost.
进一步地，本发明的被动红外探测器能够根据人体体征温度，检测车内是否存在符合人体体征温度的实物，从而进一步判断区别其他类似儿童重量的重物，进而保证所述儿童安全监控系统的正确性。Furthermore, the passive infrared detector of the present invention can detect whether there is an object in the car that meets the body temperature according to the body temperature, so as to further judge and distinguish other heavy objects similar to the weight of children, thereby ensuring the correctness of the child safety monitoring system. sex.
进一步地，本发明的车辆状态检测装置和车辆监控控制器是在车辆锁止后才会被启动的，因此能够避免误报警。Further, the vehicle state detection device and the vehicle monitoring controller of the present invention are activated after the vehicle is locked, so false alarms can be avoided.
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.
附图说明Description of drawings
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:
图1是根据本发明一个实施例的儿童安全监控系统的结构框图；Fig. 1 is a structural block diagram of a child safety monitoring system according to an embodiment of the present invention;
图2是根据本发明一个实施例的儿童安全监控系统的工作流程图。Fig. 2 is a working flow chart of the child safety monitoring system according to one embodiment of the present invention.
具体实施方式detailed description
图1是根据本实施例的儿童安全监控系统的结构框图。如图1所示，本实施例所描述的用于车辆的儿童安全监控系统，可包括：FIG. 1 is a structural block diagram of a child safety monitoring system according to this embodiment. As shown in Figure 1, the child safety monitoring system for vehicles described in this embodiment may include:
车辆状态检测装置1，用于检测车辆状态并反馈；和Vehicle state detection device 1, for detecting vehicle state and feeding back; and
车辆监控控制器2，接收所述车辆状态监控装置所返回的检测数据，并根据所述检测数据发出控制指令至执行单元3，控制所述执行单元3工作。The vehicle monitoring controller 2 receives the detection data returned by the vehicle state monitoring device, and sends a control instruction to the execution unit 3 according to the detection data, and controls the execution unit 3 to work.
本实施例中，所述车辆状态检测装置1包括安全带插入检测装置4和称重传感器5，所述安全带插入检测装置4用于检测判断安全带的插入情况，所述称重传感器5设于车辆内座椅下方，用于检测座椅重量，所述车辆监控控制器2在判断得出车内乘员状态后控制所述执行单元3的工作。In this embodiment, the vehicle state detection device 1 includes a seat belt insertion detection device 4 and a load cell 5, the seat belt insertion detection device 4 is used to detect and judge the insertion of the seat belt, and the load cell 5 is set Under the seat in the vehicle, it is used to detect the weight of the seat. The vehicle monitoring controller 2 controls the work of the execution unit 3 after determining the status of the occupants in the vehicle.
本发明通过对安全带尤其是儿童安全座椅旁的安全带的插入情况予以检测，从而根据安全带的带扣未被拔出的话即判定儿童未下车。另外，还根据座椅的重量对儿童留置情况予以确认。本实施例的结构简单，实用，能够大大降低儿童被留置在车内的可能。The present invention detects the insertion of the safety belt, especially the safety belt next to the child safety seat, so as to determine that the child has not got off the vehicle if the buckle of the safety belt is not pulled out. In addition, the child retention situation is confirmed according to the weight of the seat. The structure of this embodiment is simple and practical, and can greatly reduce the possibility of children being left in the car.
进一步地，所述安全带插入检测装置4设于儿童安全座椅旁的安全带处，在车门关闭后如检测到所述儿童安全座椅的所述安全带处于插入状态，则所述车辆监控控制器2控制所述执行单元3发出警报信号。当然在后排位置上的每个安全带处都设置所述安全带插入检测装置4，最为安全可靠，但考虑到成本及误报问题，在儿童安全座椅旁的安全带处设置所述安全带插入检测装置4则显得更为合适。Further, the safety belt insertion detection device 4 is arranged at the safety belt next to the child safety seat, and if it is detected that the safety belt of the child safety seat is in the inserted state after the door is closed, the vehicle The controller 2 controls the execution unit 3 to send out an alarm signal. Of course, the seat belt insertion detection device 4 is set at each seat belt on the rear position, which is the safest and most reliable. The band insertion detection device 4 then appears more suitable.
另外，所述车辆监控控制器2内配置有座椅重量阈值，如果所述称重传感器5检测到的所述座椅重量在所述座椅重量阈值内则所述车辆监控控制器2控制所述执行单元3发出警报信号。In addition, the vehicle monitoring controller 2 is configured with a seat weight threshold, and if the seat weight detected by the load cell 5 is within the seat weight threshold, the vehicle monitoring controller 2 controls the The execution unit 3 sends out an alarm signal.
通过设置所述座椅重量阈值，能够将检测到的座椅重量与儿童体重范围进行比较，以确认被留置在车中是否为儿童，从而在能够保证安全监控的同时，降低误报警率。By setting the seat weight threshold, the detected seat weight can be compared with the child's weight range to confirm whether the child left in the car is a child, thereby reducing the false alarm rate while ensuring safety monitoring.
所述称重传感器5和所述安全带插入检测装置4的工作是存在先后关系的，这样设计是一方面能够降低系统功耗，另一方面也是设计了报警情况的优先级，提高儿童安全监控系统的报警及时性和可靠性。所述称重传感器5在所述安全带插入检测装置4的检测结束后启动工作，在车门关闭后如所述安全带插入检测装置4检测到所述儿童安全座椅的所述安全带处于未插入状态，再启动所述称重传感器5进行工作。The work of the load cell 5 and the safety belt insertion detection device 4 has a sequential relationship. This design can reduce the power consumption of the system on the one hand, and on the other hand, the priority of the alarm situation has been designed to improve child safety monitoring. System alarm timeliness and reliability. The load cell 5 starts to work after the detection by the safety belt insertion detection device 4 is completed, and after the door is closed, if the safety belt insertion detection device 4 detects that the safety belt of the child safety seat is not in position. In the inserted state, start the load cell 5 to work again.
为了能够进一步提高本实施例的工作可靠性，还根据儿童体温特征设计了感测装置。具体地，是在所述车辆状态检测装置1中还包括被动红外探测器6，所述被动红外探测器6用于检测车内红外辐射状态，并将所述红外辐射状态的检测信号发送至所述车辆监控控制器2作为判断车内是否有儿童的依据。In order to further improve the working reliability of this embodiment, a sensing device is also designed according to the characteristics of the child's body temperature. Specifically, the vehicle state detection device 1 also includes a passive infrared detector 6, the passive infrared detector 6 is used to detect the infrared radiation state in the vehicle, and sends the detection signal of the infrared radiation state to the The above-mentioned vehicle monitoring controller 2 is used as the basis for judging whether there are children in the car.
进一步地，所述车辆监控控制器2判断所述车内红外辐射状态为人体温度时，比较车内环境温度与人体温度的差值，如两者之间的变化值大于5℃，则所述车辆监控控制器2控制所述执行单元3工作并报警。温度差值大，说明环境给人体所带来的影响更大，让人感觉不舒适，因此在车内留置儿童被长时留置后予以告警，降低留置儿童在车内的危险性。Further, when the vehicle monitoring controller 2 determines that the infrared radiation state in the vehicle is human body temperature, it compares the difference between the ambient temperature in the vehicle and the human body temperature, and if the difference between the two is greater than 5°C, then the The vehicle monitoring controller 2 controls the execution unit 3 to work and gives an alarm. A large temperature difference means that the environment has a greater impact on the human body and makes people feel uncomfortable. Therefore, an alarm will be issued after a child is left in the car for a long time to reduce the risk of leaving a child in the car.
为了保证所述被动红外探测器6能够尽可能覆盖车内，可将所述被动红外探测器6设于车辆内部，设置在车顶中间位置。In order to ensure that the passive infrared detector 6 can cover the interior of the vehicle as much as possible, the passive infrared detector 6 can be arranged inside the vehicle, at the middle of the roof.
进一步地，所述被动红外探测器6的检测波长为9.5μm至10.5μm。检测波长的范围限定是对应着人体正常体温范围的，也就是36.5℃至37.5℃之间所发出的红外波长，针对性更强，有效避免误报警。Further, the detection wavelength of the passive infrared detector 6 is 9.5 μm to 10.5 μm. The range of the detection wavelength is limited to correspond to the normal body temperature range of the human body, that is, the infrared wavelength emitted between 36.5°C and 37.5°C, which is more targeted and effectively avoids false alarms.
儿童安全监控系统的检测及控制工作理论上应该设置一个检测时间点，因为车主可能只是短时离开，或者离车不远，所以本实施例将这个时间设计在了车门锁止时，车门锁止则儿童安全监控系统的检测及控制工作启动。The detection and control work of the child safety monitoring system should theoretically set a detection time point, because the car owner may only leave for a short time, or not far from the car, so this embodiment designs this time when the door is locked. Then the detection and control work of the child safety monitoring system starts.
具体说来，本实施例还包括车辆闭锁装置7，所述车辆状态检测装置1和所述车辆监控控制器2在所述车辆闭锁装置7完成闭锁工作后被启动。Specifically, this embodiment also includes a vehicle locking device 7, and the vehicle state detection device 1 and the vehicle monitoring controller 2 are activated after the vehicle locking device 7 completes the locking work.
进一步地，所述执行单元3包括车窗升降控制器、车灯控制器、喇叭控制器、车载呼叫系统等中的一个或多个。Further, the execution unit 3 includes one or more of a window lift controller, a car light controller, a horn controller, a car call system, and the like.
本发明的儿童安全监控系统，用于车辆，结合儿童体征和常规儿童安全措施，通过对安全带插入情况及座椅重量分布情况进行检测，能够较为方便快速地实现对车内儿童留置情况进行判断，再通过执行单元3做出儿童被锁车内的报警动作，通过提醒家长或路人注意车内有锁住和遗忘的儿童，以避免因家长疏忽大意，导致儿童被锁车内的悲剧发生，且本系统结构简单，可靠性高，且投入成本也较低。The child safety monitoring system of the present invention is used in vehicles, and combined with children's physical signs and conventional child safety measures, by detecting the seat belt insertion and seat weight distribution, it can more conveniently and quickly realize the judgment on the indwelling situation of children in the vehicle , and then through the execution unit 3 to make an alarm action for children locked in the car, by reminding parents or passers-by to pay attention to locked and forgotten children in the car, so as to avoid the tragedy of children being locked in the car due to the negligence of parents, Moreover, the system has simple structure, high reliability and low investment cost.
另外，本发明的被动红外探测器6能够根据人体体征温度，检测车内是否存在符合人体体征温度的实物，从而进一步判断区别其他类似儿童重量的重物，进而保证所述儿童安全监控系统的正确性。In addition, the passive infrared detector 6 of the present invention can detect whether there is an object in the car that meets the body temperature according to the body temperature, so as to further judge and distinguish other heavy objects similar to the weight of children, thereby ensuring the correctness of the child safety monitoring system. sex.
进一步地，本发明的车辆状态检测装置1和车辆监控控制器2是在车辆锁止后才会被启动的，因此能够避免误报警。Further, the vehicle state detection device 1 and the vehicle monitoring controller 2 of the present invention are activated after the vehicle is locked, so false alarms can be avoided.
图2是本实施例的儿童安全监控系统的工作流程图。如图2所示，本实施例所描述的儿童安全监控系统如下：Fig. 2 is a working flow chart of the child safety monitoring system of this embodiment. As shown in Figure 2, the child safety monitoring system described in this embodiment is as follows:
在车辆熄火及门窗落锁状态下，车辆状态检测装置开始工作。首先，安全带插入检测装置4检测车内后排儿童座椅安全带是否插入，如检测到后排儿童安全座椅处有安全带插入，则发出警报信号；如没有检测到安全带插入，则启动称重传感器5开始巡检座椅重量及乘坐位置，如无检测到符合儿童体征重量的重量分布，则直接结束逻辑判断，警报解除。如果称重传感器5检测到重量，且重量正好在儿童或类似儿童重量逻辑区间，则可判断出座椅上有儿童或类似儿童重量的重物，发出告警或者结合被动红外探测器6进行辅助判定。When the vehicle is turned off and the doors and windows are locked, the vehicle state detection device starts to work. First, the safety belt insertion detection device 4 detects whether the safety belt of the rear child seat in the vehicle is inserted, and if it detects that the safety belt is inserted at the rear child safety seat, an alarm signal is sent; Start the load cell 5 and start to inspect the weight of the seat and the seat position. If no weight distribution that meets the child's physical weight is detected, the logical judgment is directly terminated, and the alarm is released. If the load sensor 5 detects the weight, and the weight is just in the logical range of children or similar children's weight, it can be judged that there are children or heavy objects similar to children's weight on the seat, and an alarm is issued or an auxiliary judgment is made in combination with the passive infrared detector 6 .
当检测到座椅上有儿童或类似儿童的重物，通过被动红外探测器6进行进一步判断区别其他类似儿童重量的重物与儿童。启动车内被动红外报警探头进行检测，如检测到10μm左右红外辐射(人体温度一般在37度左右，会发出特定波长10μm左右的红外线)，把信号传输给车辆监控控制器2，这时车辆监控控制器进行比较环境温度与人体温度的变化值进行比较，如两者之间的变化值大于5℃时，进行报警。When it is detected that there are children or heavy objects similar to children on the seat, it is further judged by the passive infrared detector 6 to distinguish other heavy objects and children similar to the weight of children. Start the passive infrared alarm probe in the car for detection. If infrared radiation of about 10 μm is detected (the human body temperature is generally about 37 degrees, it will emit infrared rays with a specific wavelength of about 10 μm), and the signal is transmitted to the vehicle monitoring controller 2. At this time, the vehicle monitoring The controller compares the change value of the ambient temperature and the human body temperature, and if the change value between the two is greater than 5°C, an alarm is given.
在报警的同时，还可通过执行单元3的其他动作因其行人或驾乘人员的注意。例如控制车窗下降，保持车内空气流通的同时，能够让外部人员注意到车内情况；通过车灯控制器控制车灯双闪，或通过喇叭控制器鸣笛。甚至还可通过车载呼叫系统直接呼叫车主，提请注意车内儿童留置情况的发生。While reporting to the police, other actions of the execution unit 3 can also be paid attention to by pedestrians or drivers and passengers. For example, control the lowering of the car window to keep the air circulation in the car, and at the same time make the outside people notice the situation in the car; control the double flashing of the car lights through the car light controller, or sound the whistle through the horn controller. It is even possible to directly call the car owner through the car call system to draw attention to the occurrence of children in the car.
当上述逻辑判断成立，这时可判断出儿童被遗忘在车内，控制器发出报警信号，这时车辆报警和双闪开启，用以提醒车主或路人车内有儿童。当车主实施报警解除时，这时报警解除。When the above logical judgment is established, it can be judged that the child is forgotten in the car, and the controller sends an alarm signal. At this time, the vehicle alarm and double flashing are turned on to remind the owner or passers-by that there is a child in the car. When the car owner implements the alarm release, the alarm is released at this time.
至此，本领域技术人员应认识到，虽然本文已详尽示出和描述了本发明的多个示例性实施例，但是，在不脱离本发明精神和范围的情况下，仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此，本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610348624.1ACN105882585B (en) | 2016-05-24 | 2016-05-24 | Children's safety monitoring method for vehicle |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610348624.1ACN105882585B (en) | 2016-05-24 | 2016-05-24 | Children's safety monitoring method for vehicle |
| Publication Number | Publication Date |
|---|---|
| CN105882585Atrue CN105882585A (en) | 2016-08-24 |
| CN105882585B CN105882585B (en) | 2019-03-19 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610348624.1AActiveCN105882585B (en) | 2016-05-24 | 2016-05-24 | Children's safety monitoring method for vehicle |
| Country | Link |
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| CN (1) | CN105882585B (en) |
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