WO2016169381A1 - Control board monitoring system for grass cutter, and monitoring method for control board monitoring system - Google Patents
Control board monitoring system for grass cutter, and monitoring method for control board monitoring system Download PDFInfo
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- WO2016169381A1 WO2016169381A1 PCT/CN2016/077170 CN2016077170W WO2016169381A1 WO 2016169381 A1 WO2016169381 A1 WO 2016169381A1 CN 2016077170 W CN2016077170 W CN 2016077170W WO 2016169381 A1 WO2016169381 A1 WO 2016169381A1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
- A01D69/02—Driving mechanisms or parts thereof for harvesters or mowers electric
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D75/00—Accessories for harvesters or mowers
- A01D75/20—Devices for protecting men or animals
Definitions
- the invention relates to a control panel monitoring system for a lawn mower and a monitoring method thereof, in particular to a monitoring system and a monitoring method for automatically stopping when a component of a lawn mower control panel is abnormal.
- the performance of the mower is particularly good or not, and the normal operation of the mower control panel directly affects the efficiency of the mower; currently the lawn mower on the market can make the mower Mowing is used under different conditions of lawn.
- the mower's blade is passively stopped when the user actively releases the switch or the lawn mower encounters complicated lawn, over-current protection and low-pressure protection and Hall abnormal protection. Rotating; however, there are no functional modules to monitor the reliability of the components on the control panel of the electronic control section; if the components on the electronic control panel fail during use, the machine mowing function is incomplete or ineffective.
- the machine loses the brake function, and the brake can be stopped and the machine can be freely stopped. Therefore, if the user goes to the side cutter, the fast rotating blade of the lawn mower may damage the user and there is a safety hazard.
- the present invention provides a control panel monitoring system for a lawn mower and a monitoring method thereof.
- the technical scheme adopted by the control board monitoring system of the lawn mower includes: a power supply module, a power processing module, a microprocessor control module, an angle monitoring module, a current processing module motor driving module, a watchdog module and a relay module. ;
- the power supply module is used to supply power to the lawn mower
- the power processing module is configured to convert a high voltage output by the power supply module to a low voltage, and input the signal to the microprocessor control module;
- the angle monitoring module is configured to monitor a tilt angle between the lawn mower and a horizontal plane
- the current processing module is configured to monitor a current state; the motor driving module is configured to control a mower blade work;
- the microprocessor control module is configured to detect an output signal of the angle monitoring module and the current processing module, and output a control signal to the motor driving module;
- the watchdog module is configured to monitor the working state of the microprocessor control module in real time
- the relay module is configured to open or close a signal loop of an electronic control board in the lawn mower.
- the power processing module is composed of a voltage regulator, a diode, and a triode series voltage regulator module.
- the monitoring method for the control panel of the lawn mower of the present invention is:
- Step 1 Start the switch button of the lawn mower, and the power supply module starts to supply power to the lawn mower;
- Step 2 The power processing module converts the high voltage outputted by the power supply module into a low voltage, and inputs the voltage to the microprocessor control module;
- Step 3 The microprocessor control module detects an output signal of the angle monitoring module and the current processing module, and outputs a control signal to the motor driving module.
- Step 4 After the motor drive module receives the control signal from the microprocessor control module, the lawn mower blade is controlled to stop or work;
- Step 5 After the microprocessor control module is damaged, the control signal for maintaining the power-on is not output to the watchdog module, and the watchdog module outputs a brake control signal to the relay module;
- Step 6 After receiving the brake control signal from the watchdog module, the relay module will directly disconnect the signal circuit of the electronic control board in the lawn mower, and the lawn mower will stop working.
- the invention realizes monitoring the state of the components on the electronic control panel by monitoring the working state of the microprocessor control module through the watchdog module through the electronic intelligent technology.
- the microprocessor control module fails to fail, the control signal for maintaining the power-on is not output to the watchdog module, and the watchdog module outputs a brake control signal to the relay module, and the relay module receives After the brake control signal from the watchdog module, the signal circuit of the electronic control board in the mower will be directly disconnected, and the mower will stop working. Therefore, the present invention can improve the mowing efficiency of the lawn mower while also ensuring the safety of the user.
- FIG. 1 is a schematic diagram showing the principle of a circuit module of a control panel monitoring system of the lawn mower of the present invention
- FIG. 2 is a schematic diagram showing the flow of signals of the control panel monitoring system of the lawn mower of the present invention.
- the control panel monitoring system of the lawn mower of the present invention comprises a power supply module, a power processing module, a microprocessor control module, an angle monitoring module, a current processing module motor driving module, a watchdog module and a relay module.
- Power supply module The working principle of the circuit module of the control panel monitoring system is as follows: the whole system is powered by the power supply module for supplying power to the lawn mower, and the power supply module is a device for supplying power to the entire lawn mower system, usually lithium. Composed of an ion battery, it provides the working power of the entire system control in real time, converting the electric energy into the kinetic energy of the lawn mower mowing.
- the voltage processing is then implemented by a power processing module, which is a power conversion device, usually composed of an LDO (regulator), a diode, and a triode series voltage regulator module, specifically providing a power supply module.
- a power processing module which is a power conversion device, usually composed of an LDO (regulator), a diode, and a triode series voltage regulator module, specifically providing a power supply module.
- the high voltage is converted into a low voltage of the microprocessor control module, and the state of the voltage is fed back to the microprocessor control module to detect the normality of the voltage to ensure the normal operation of the electronic control system.
- the microprocessor control module is the core electronic component of the entire lawn mower. It is usually composed of a highly integrated IC chip. It works by the energy supplied by the battery, and detects all the peripherals through the module detection part of the peripheral system. The signal state, such as the abnormality of the system signal, will automatically send a stop signal to realize the shutdown brake of the lawn mower and protect the safety of the user. Specifically, the microprocessor control module is processed after receiving the whole machine switching signal, and sends a signal for turning on the MOS (Field Effect Transistor) through the motor driving module to realize the action of starting or shutting down, thereby implementing the control mowing. Machine blade works or stops;
- MOS Field Effect Transistor
- the motor drive module is used for timing signals sent by the microprocessor control module, and is regularly driven
- the current processing module is a device for monitoring the current of the entire lawn mower before mowing or starting mowing, and the signal is fed back to the microprocessor control module that processes the signal for real-time processing, whether to open or close the cutting.
- the angle monitoring module is used to monitor the angle of the lawn mower with the horizontal plane during the mowing process or before starting the mowing, and the detected angle signal is transmitted to the microprocessor control module in real time through the processing module to determine
- a modular device that turns on the mower or stops mowing which is usually composed of an angle monitoring IC chip and a peripheral discrete capacitor resistor.
- the microprocessor control module will monitor the current processing module, the angle detection module and the voltage and Hall signal of the electronic circuit board in real time, and then start or shut down the operation. Once there is voltage, current And the angle and other anomalies will issue a shutdown signal to achieve brake brake stop and protect the user's safety in time.
- the microprocessor control module is mainly used for detecting an output signal of the angle monitoring module and the current processing module, when the inclination angle between the chassis of the lawn mower and the horizontal plane exceeds a certain range (for example, the inclination angle exceeds 60 degrees)
- a certain range for example, the inclination angle exceeds 60 degrees
- the watchdog module is used to monitor the working state of the microprocessor control module itself and the internal software program in real time, usually a discrete circuit composed of a diode and a triode. With the prolonged use of the mower, the devices gradually age. Once the microprocessor control module fails, or the program software runs away, and the mower is in an uncontrollable state, the watchdog module will be timely. Starting the relay A set of contact loops, independently braking, forcing the mower to stop mowing, thus ensuring the safety of the user and preventing accidental injury.
- the relay module is a signal circuit for opening or closing an electronic control board in the lawn mower, and is usually composed of a high-power relay for cutting or closing the entire circuit to realize switching of electrical energy.
- the invention is a control panel monitoring realized by a power supply module, a power processing module, a microprocessor control module, a motor drive module, an angle monitoring module, a current processing module, a watchdog module and a relay module to work together in an orderly manner.
- the system can achieve fast braking and shutdown, and has the advantages of high efficiency and high safety performance.
- FIG. 2 is a schematic diagram showing the signal flow of the lawn mower control panel monitoring system of the present invention. As shown in FIG. 2, the specific workflow of the present invention is as follows:
- the switch button When the user presses the switch button on the mower, the switch button outputs a switch signal to the signal processing circuit.
- the microprocessor module on the signal processing circuit receives the switch signal, it will detect the working status of all the components on the switch.
- the angle control board module also sends angle information to the signal processing loop, and the signal processing loop converts the detected state information into an electronic signal output to the main board, and the main board receives the signal sent by the signal processing loop for further processing to determine Whether it is stopped; once the condition of the component is detected abnormally, the main board will immediately send a shutdown signal to the motor, and the motor will immediately stop rotating to complete the detection before the entire mowing process.
- the mower starts to cut grass; if it detects that the state of the electronic components on the main board is abnormal during the mower, the microprocessor will send a shutdown signal to the main board. After the main board receives the stop signal, it will issue a stop command to the motor, and the mower will brake and stop.
- the switch signal of the present invention is a signal generated by a circuit composed of a switch connecting the whole machine and the circuit board, and is generally composed of a diode, a triode, and a resistor;
- the power supply processing signal of the present invention is a battery.
- the signal generated by the loop formed by the packet and the power management part is usually composed of a lithium ion battery and a power chip;
- the signal processing loop of the present invention is generated by a loop composed of a microprocessor controller (such as a single chip microcomputer) and a peripheral circuit.
- the signal is usually composed of a single chip and peripheral resistors and capacitors.
- the main board of the present invention is composed of a circuit for receiving and processing the inclination signal, and is used for directly controlling the rotation and stop of the lawn mower blade, and is usually composed of a MOS (field effect transistor), a resistor, a capacitor, a diode, and a triode.
- MOS field effect transistor
Abstract
A control board monitoring system for a grass cutter, and a monitoring method for the control board monitoring system. The control board monitoring system comprises a power source and power supply module, a power source processing module, a microprocessor control module, an angle monitoring module, a current processing module, a motor driving module, a watchdog module, and a relay module. During a grass cutting process, a grass cutter brakes after detecting an abnormality in the state of an electronic component on a main board or that the microprocessor module has failed. Therefore, the present invention has advantages such as high grass cutting efficiency and good safety.
Description
本发明涉及一种割草机的控制板监测系统及其监测方法，尤其涉及一种当割草机控制板上的零部件出现异常时而自动停机的监测系统及其监测方法。The invention relates to a control panel monitoring system for a lawn mower and a monitoring method thereof, in particular to a monitoring system and a monitoring method for automatically stopping when a component of a lawn mower control panel is abnormal.
一般而言，割草机的性能好坏特别割草机控制板上零部件工作的正常与否，直接影响到割草机的使用效率；目前市场上的割草机，能够让割草机在不同状况的草坪下使用割草，割草机的刀条都是在使用者主动地释放开关或者割草机遇到了复杂的草坪时出现过流保护，低压保护和霍尔异常保护而被动地停机停止转动的；但是没有任何功能模块来监测电子控制部分的控制板上的零部件的可靠性；如若在使用中，电子控制板上的零部件失效，就会同时致使机器割草功能不完整甚至失效，使机器失去刹车功能，不能刹车停机而出现自由停机现象，这样如若使用者去侧翻割草机，割草机的快速转动的刀条就可能会伤害到使用者，存在安全隐患。Generally speaking, the performance of the mower is particularly good or not, and the normal operation of the mower control panel directly affects the efficiency of the mower; currently the lawn mower on the market can make the mower Mowing is used under different conditions of lawn. The mower's blade is passively stopped when the user actively releases the switch or the lawn mower encounters complicated lawn, over-current protection and low-pressure protection and Hall abnormal protection. Rotating; however, there are no functional modules to monitor the reliability of the components on the control panel of the electronic control section; if the components on the electronic control panel fail during use, the machine mowing function is incomplete or ineffective. The machine loses the brake function, and the brake can be stopped and the machine can be freely stopped. Therefore, if the user goes to the side cutter, the fast rotating blade of the lawn mower may damage the user and there is a safety hazard.
发明内容Summary of the invention
为解决上述技术问题，本发明提供一种割草机的控制板监测系统及其监测方法。所述割草机的控制板监测系统采用的技术方案为：包括，电源供电模块、电源处理模块、微处理器控制模块、角度监测模块、电流处理模块电机驱动模块、看门狗模块与继电器模块；In order to solve the above technical problem, the present invention provides a control panel monitoring system for a lawn mower and a monitoring method thereof. The technical scheme adopted by the control board monitoring system of the lawn mower includes: a power supply module, a power processing module, a microprocessor control module, an angle monitoring module, a current processing module motor driving module, a watchdog module and a relay module. ;
其中，所述电源供电模块用于给割草机供电；
Wherein the power supply module is used to supply power to the lawn mower;
所述电源处理模块用于将电源供电模块输出的高电压转换为低电压，并输入给微处理器控制模块；The power processing module is configured to convert a high voltage output by the power supply module to a low voltage, and input the signal to the microprocessor control module;
所述角度监测模块用于监测割草机与水平面之间的倾角大小；The angle monitoring module is configured to monitor a tilt angle between the lawn mower and a horizontal plane;
所述电流处理模块用于监测电流状态；所述电机驱动模块用于控制割草机刀条工作；The current processing module is configured to monitor a current state; the motor driving module is configured to control a mower blade work;
所述微处理器控制模块用于检测所述角度监测模块与电流处理模块的输出信号，并输出一控制信号给所述电机驱动模块；The microprocessor control module is configured to detect an output signal of the angle monitoring module and the current processing module, and output a control signal to the motor driving module;
所述看门狗模块用于实时监测微处理器控制模块的工作状态；The watchdog module is configured to monitor the working state of the microprocessor control module in real time;
所述继电器模块用于断开或闭合所述割草机内电子控制板的信号回路。The relay module is configured to open or close a signal loop of an electronic control board in the lawn mower.
优选地，所述电源处理模块是由稳压器、二极管、三极管串联稳压模块组成。Preferably, the power processing module is composed of a voltage regulator, a diode, and a triode series voltage regulator module.
本发明割草机的控制板监测方法为：The monitoring method for the control panel of the lawn mower of the present invention is:
步骤一：启动割草机的开关按钮，所述电源供电模块开始给割草机供电；Step 1: Start the switch button of the lawn mower, and the power supply module starts to supply power to the lawn mower;
步骤二：所述电源处理模块将电源供电模块输出的高电压转换为低电压，并输入给微处理器控制模块；Step 2: The power processing module converts the high voltage outputted by the power supply module into a low voltage, and inputs the voltage to the microprocessor control module;
步骤三：所述微处理器控制模块检测所述角度监测模块与电流处理模块的输出信号，并输出一控制信号给所述电机驱动模块；Step 3: The microprocessor control module detects an output signal of the angle monitoring module and the current processing module, and outputs a control signal to the motor driving module.
步骤四：所述电机驱动模块接到来自微处理器控制模块控制信号后，控制割草机刀条停止或工作；Step 4: After the motor drive module receives the control signal from the microprocessor control module, the lawn mower blade is controlled to stop or work;
步骤五：当所述微处理器控制模块受损失效后没有输出维持开机的控制信号给看门狗模块，所述看门狗模块即输出一制动控制信号给所述继电器模块；
Step 5: After the microprocessor control module is damaged, the control signal for maintaining the power-on is not output to the watchdog module, and the watchdog module outputs a brake control signal to the relay module;
步骤六：所述继电器模块接收到来自看门狗模块的制动控制信号后，将直接断开所述割草机内电子控制板的信号回路，割草机将停止工作。Step 6: After receiving the brake control signal from the watchdog module, the relay module will directly disconnect the signal circuit of the electronic control board in the lawn mower, and the lawn mower will stop working.
本发明是通过电子智能技术，通过看门狗模块监测微处理器控制模块的工作状态，进而实现监测电子控制板上的零部件的状态。当所述微处理器控制模块受损失效后没有输出维持开机的控制信号给看门狗模块，所述看门狗模块即输出一制动控制信号给所述继电器模块，所述继电器模块接收到来自看门狗模块的制动控制信号后，将直接断开所述割草机内电子控制板的信号回路，割草机将停止工作。因此，本发明可以提高割草机的割草效率，同时也保障了使用者的安全。The invention realizes monitoring the state of the components on the electronic control panel by monitoring the working state of the microprocessor control module through the watchdog module through the electronic intelligent technology. When the microprocessor control module fails to fail, the control signal for maintaining the power-on is not output to the watchdog module, and the watchdog module outputs a brake control signal to the relay module, and the relay module receives After the brake control signal from the watchdog module, the signal circuit of the electronic control board in the mower will be directly disconnected, and the mower will stop working. Therefore, the present invention can improve the mowing efficiency of the lawn mower while also ensuring the safety of the user.
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained according to these drawings without any creative work, wherein:
图1是本发明割草机的控制板监测系统的电路模块原理示意图；1 is a schematic diagram showing the principle of a circuit module of a control panel monitoring system of the lawn mower of the present invention;
图2是本发明割草机的控制板监测系统的信号流向示意图。2 is a schematic diagram showing the flow of signals of the control panel monitoring system of the lawn mower of the present invention.
下面将对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其
它实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all of those obtained by those of ordinary skill in the art without creative efforts
The embodiments thereof are all within the scope of protection of the present invention.
图1是本发明割草机的控制板监测系统的电路模块原理示意图。如图1所示，本发明割草机的控制板监测系统包括，电源供电模块、电源处理模块、微处理器控制模块、角度监测模块、电流处理模块电机驱动模块、看门狗模块与继电器模块电源供电模块。所述控制板监测系统的电路模块工作原理具体如下：整个系统由电源供电模块负责给割草机供电，所述电源供电模块是用来提供整个割草机系统供电的一种装置，通常是锂离子电池组成的，它实时提供整个系统控制的工作动力，将电能转化为割草机割草的动能。1 is a schematic diagram of the circuit module of the control panel monitoring system of the lawn mower of the present invention. As shown in FIG. 1 , the control panel monitoring system of the lawn mower of the present invention comprises a power supply module, a power processing module, a microprocessor control module, an angle monitoring module, a current processing module motor driving module, a watchdog module and a relay module. Power supply module. The working principle of the circuit module of the control panel monitoring system is as follows: the whole system is powered by the power supply module for supplying power to the lawn mower, and the power supply module is a device for supplying power to the entire lawn mower system, usually lithium. Composed of an ion battery, it provides the working power of the entire system control in real time, converting the electric energy into the kinetic energy of the lawn mower mowing.
然后通过电源处理模块实现电压的大小转换，所述电源处理模块是一种电源转换装置，通常是由LDO(稳压器)，二极管，三极管串联稳压模块组成的，具体是将电源供电模块提供的高压电压转化为微处理器控制模块正常工作的低压电压，并时刻反馈电压的状态给微处理器控制模块以检测电压的正常与否，来确保电子控制系统的正常工作。The voltage processing is then implemented by a power processing module, which is a power conversion device, usually composed of an LDO (regulator), a diode, and a triode series voltage regulator module, specifically providing a power supply module. The high voltage is converted into a low voltage of the microprocessor control module, and the state of the voltage is fed back to the microprocessor control module to detect the normality of the voltage to ensure the normal operation of the electronic control system.
所述微处理器控制模块是整个割草机的核心电子零部件，通常是由高度集成的IC芯片组成的，它通过电池提供过来的能量来工作，通过系统外围的模块检测部分来检测外围所有的信号状态，如出现系统信号的异常，就会主动发出停机信号，实现割草机的停机制动，保护使用者的安全。具体而言，所述微处理器控制模块在收到整机开关信号后经过处理，通过电机驱动模块来发出开启MOS(场效应管)的信号，实现开机或者关机的动作，进而实现控制割草机刀条工作或停止；The microprocessor control module is the core electronic component of the entire lawn mower. It is usually composed of a highly integrated IC chip. It works by the energy supplied by the battery, and detects all the peripherals through the module detection part of the peripheral system. The signal state, such as the abnormality of the system signal, will automatically send a stop signal to realize the shutdown brake of the lawn mower and protect the safety of the user. Specifically, the microprocessor control module is processed after receiving the whole machine switching signal, and sends a signal for turning on the MOS (Field Effect Transistor) through the motor driving module to realize the action of starting or shutting down, thereby implementing the control mowing. Machine blade works or stops;
所述电机驱动模块是用来由微处理器控制模块发出时序信号，有规律的驱
动三相MOS(场效应管)的上下桥而开启或者关闭MOS(场效应管)实现驱动功能的一种模块，它通常是由高度集成的IC(半导体)芯片和分立的二极管三极管组成。The motor drive module is used for timing signals sent by the microprocessor control module, and is regularly driven
A module that drives or closes a MOS (Field Effect Transistor) to drive the upper and lower bridges of a three-phase MOS (Field Effect Transistor). It is usually composed of a highly integrated IC (semiconductor) chip and a discrete diode triode.
所述电流处理模块是用来监测整个割草机在割草或者开始割草之前的电流的一种装置，通过信号反馈给处理信号的微处理器控制模块来实时处理，是否开启或者关停割草机，实现安全割草的一种功能装置，它通常是由运算放大器或者集成IC芯片组成的。The current processing module is a device for monitoring the current of the entire lawn mower before mowing or starting mowing, and the signal is fed back to the microprocessor control module that processes the signal for real-time processing, whether to open or close the cutting. A functional device that implements safe mowing. It is usually composed of an operational amplifier or an integrated IC chip.
所述角度监测模块是用来监测割草机在割草过程中或者开始割草之前与水平面的角度的大小，将监测到的角度信号通过处理模块，实时传送给微处理器控制模块，来判断是否开启割草机或者停止割草的一种模块装置，它通常是由角度监测IC芯片以及外围的分立电容电阻组成的。The angle monitoring module is used to monitor the angle of the lawn mower with the horizontal plane during the mowing process or before starting the mowing, and the detected angle signal is transmitted to the microprocessor control module in real time through the processing module to determine A modular device that turns on the mower or stops mowing, which is usually composed of an angle monitoring IC chip and a peripheral discrete capacitor resistor.
正常工作的情况下，微处理器控制模块会实时监测电流处理模块，角度检测模块以及电子线路板上本身的电压和霍尔信号的正常与否，再实现开机或者关机动作，一旦有电压，电流和角度以及其它的异常都会发出关机信号，实现制动刹车停机，及时保护使用者的安全。在本发明中，所述微处理器控制模块主要用于检测所述角度监测模块与电流处理模块的输出信号，当割草机的底盘与水平面之间的倾角超过一定范围(如倾角超过60度，控制系统监测到的整机状态将会显示异常而停机)时，所述微处理器控制模块输出一停机控制信号给所述电机驱动模块，再通过驱动模块完成关机动作。Under normal working conditions, the microprocessor control module will monitor the current processing module, the angle detection module and the voltage and Hall signal of the electronic circuit board in real time, and then start or shut down the operation. Once there is voltage, current And the angle and other anomalies will issue a shutdown signal to achieve brake brake stop and protect the user's safety in time. In the present invention, the microprocessor control module is mainly used for detecting an output signal of the angle monitoring module and the current processing module, when the inclination angle between the chassis of the lawn mower and the horizontal plane exceeds a certain range (for example, the inclination angle exceeds 60 degrees) When the state of the whole machine monitored by the control system will display abnormality and stop, the microprocessor control module outputs a shutdown control signal to the motor drive module, and then completes the shutdown action by the drive module.
所述看门狗模块是用来实时监测微处理器控制模块本身及内部软件程序的工作状态的，通常是由二极管，三极管组成的分立回路。随着割草机使用时间的延长，各器件逐渐老化，一旦微处理器控制模块出现故障，或者程序软件跑飞，而使割草机处于一种不可控的状态，看门狗模块就会及时启动继电器的另
一组触点回路，独立地实现制动，强制割草机停止割草，从而保障使用者的安全，防止意外伤害事件的发生。The watchdog module is used to monitor the working state of the microprocessor control module itself and the internal software program in real time, usually a discrete circuit composed of a diode and a triode. With the prolonged use of the mower, the devices gradually age. Once the microprocessor control module fails, or the program software runs away, and the mower is in an uncontrollable state, the watchdog module will be timely. Starting the relay
A set of contact loops, independently braking, forcing the mower to stop mowing, thus ensuring the safety of the user and preventing accidental injury.
所述继电器模块是用于断开或闭合所述割草机内电子控制板的信号回路，通常是由大功率继电器组成的，用于切断或者闭合整个回路，实现电能的开关切换。The relay module is a signal circuit for opening or closing an electronic control board in the lawn mower, and is usually composed of a high-power relay for cutting or closing the entire circuit to realize switching of electrical energy.
本发明是由电源供电模块，电源处理模块，微处理器控制模块，电机驱动模块，角度监测模块、电流处理模块、看门狗模块和继电器模块来一起相互配合有序工作来实现的控制板监测系统，可实现快速制动停机，且效率高和安全性能高等优点。The invention is a control panel monitoring realized by a power supply module, a power processing module, a microprocessor control module, a motor drive module, an angle monitoring module, a current processing module, a watchdog module and a relay module to work together in an orderly manner. The system can achieve fast braking and shutdown, and has the advantages of high efficiency and high safety performance.
图2是本发明割草机控制板监测系统的信号流向示意图。如图2所示，本发明的具体工作流程如下：2 is a schematic diagram showing the signal flow of the lawn mower control panel monitoring system of the present invention. As shown in FIG. 2, the specific workflow of the present invention is as follows:
当使用者按下割草机上的开关按钮，开关按钮会输出一个开关信号给信号处理回路，信号处理回路上的微处理器模块收到开关信号后就会检测其上的所有零部件的工作状态，同时角度控制板模块也会发送角度信息给信号处理回路，信号处理回路将检测到的状态信息转化成电子信号输出给主板，主板通过收到信号处理回路送来的信号进行进一步处理，以决定是否停机；一旦检测出零部件的状态异常，主板就会立即发出关机信号给电机，电机就会立即停止转动，完成整个的割草过程之前的检测。When the user presses the switch button on the mower, the switch button outputs a switch signal to the signal processing circuit. When the microprocessor module on the signal processing circuit receives the switch signal, it will detect the working status of all the components on the switch. At the same time, the angle control board module also sends angle information to the signal processing loop, and the signal processing loop converts the detected state information into an electronic signal output to the main board, and the main board receives the signal sent by the signal processing loop for further processing to determine Whether it is stopped; once the condition of the component is detected abnormally, the main board will immediately send a shutdown signal to the motor, and the motor will immediately stop rotating to complete the detection before the entire mowing process.
当割草机的所有状态检测通过后，割草机开始割草；如果在割草机的过程中检测到主板上的电子零部件的状态出现异常，微处理器就会发出停机信号给主板，主板收到停机信号后，就会发出停机指令给电机，割草机就会刹车制动，实现停机。
When all the state of the mower passes, the mower starts to cut grass; if it detects that the state of the electronic components on the main board is abnormal during the mower, the microprocessor will send a shutdown signal to the main board. After the main board receives the stop signal, it will issue a stop command to the motor, and the mower will brake and stop.
需要说明的是，本发明所述的开关信号是连接整机与线路板的开关组成的回路所产生的信号，它通常是由二极管、三极管，电阻组成的；本发明的电源供电处理信号是电池包和电源管理部分所组成的回路产生的信号，它通常是由锂离子电池和电源芯片组成的；本发明的信号处理回路是微处理控制器(如单片机)以及外围的电路组成的回路所产生的信号，通常是由单片机以及外围的电阻、电容组成的。本发明的主板是接受和处理倾角信号的回路所组成的，用来直接控制割草机刀条的转动与停止，通常是由MOS(场效应管)、电阻，电容以及二极管、三极管组成的。It should be noted that the switch signal of the present invention is a signal generated by a circuit composed of a switch connecting the whole machine and the circuit board, and is generally composed of a diode, a triode, and a resistor; the power supply processing signal of the present invention is a battery. The signal generated by the loop formed by the packet and the power management part is usually composed of a lithium ion battery and a power chip; the signal processing loop of the present invention is generated by a loop composed of a microprocessor controller (such as a single chip microcomputer) and a peripheral circuit. The signal is usually composed of a single chip and peripheral resistors and capacitors. The main board of the present invention is composed of a circuit for receiving and processing the inclination signal, and is used for directly controlling the rotation and stop of the lawn mower blade, and is usually composed of a MOS (field effect transistor), a resistor, a capacitor, a diode, and a triode.
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本发明的专利保护范围内。
The above is only the embodiment of the present invention, and thus does not limit the scope of the patent of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification of the present invention, or directly or indirectly applied to other related technical fields, The same is included in the scope of patent protection of the present invention.
Claims (3)
- 一种割草机的控制板监测系统，其特征在于：包括，电源供电模块、电源处理模块、微处理器控制模块、角度监测模块、电流处理模块、电机驱动模块、看门狗模块与继电器模块；A control panel monitoring system for a lawn mower, comprising: a power supply module, a power processing module, a microprocessor control module, an angle monitoring module, a current processing module, a motor driving module, a watchdog module, and a relay module ;其中，所述电源供电模块用于给割草机供电；Wherein the power supply module is used to supply power to the lawn mower;所述电源处理模块用于将电源供电模块输出的高电压转换为低电压，并输入给微处理器控制模块；The power processing module is configured to convert a high voltage output by the power supply module to a low voltage, and input the signal to the microprocessor control module;所述角度监测模块用于监测割草机与水平面之间的倾角大小；The angle monitoring module is configured to monitor a tilt angle between the lawn mower and a horizontal plane;所述电流处理模块用于监测电流状态；所述电机驱动模块用于控制割草机刀条工作；The current processing module is configured to monitor a current state; the motor driving module is configured to control a mower blade work;所述微处理器控制模块用于检测所述角度监测模块与电流处理模块的输出信号，并输出一控制信号给所述电机驱动模块；The microprocessor control module is configured to detect an output signal of the angle monitoring module and the current processing module, and output a control signal to the motor driving module;所述看门狗模块用于实时监测微处理器控制模块的工作状态；The watchdog module is configured to monitor the working state of the microprocessor control module in real time;所述继电器模块用于断开或闭合所述割草机内电子控制板的信号回路。The relay module is configured to open or close a signal loop of an electronic control board in the lawn mower.
- 根据权利要求1所述的割草机的控制板监测系统，其特征在于：所述电源处理模块是由稳压器、二极管、三极管串联稳压模块组成。The control panel monitoring system of the lawn mower according to claim 1, wherein the power processing module is composed of a voltage regulator, a diode, and a triode series voltage regulator module.
- 一种如权利要求1或2所述的割草机的控制板监测方法，其监测步骤为：A control panel monitoring method for a lawn mower according to claim 1 or 2, wherein the monitoring step is:步骤一：启动割草机的开关按钮，所述电源供电模块开始给割草机供电；Step 1: Start the switch button of the lawn mower, and the power supply module starts to supply power to the lawn mower;步骤二：所述电源处理模块将电源供电模块输出的高电压转换为低电压，并输入给微处理器控制模块；Step 2: The power processing module converts the high voltage outputted by the power supply module into a low voltage, and inputs the voltage to the microprocessor control module;步骤三：所述微处理器控制模块检测所述角度监测模块与电流处理模块的输出信号，并输出一控制信号给所述电机驱动模块；Step 3: The microprocessor control module detects an output signal of the angle monitoring module and the current processing module, and outputs a control signal to the motor driving module.步骤四：所述电机驱动模块接到来自微处理器控制模块控制信号后，控制割草机刀条停止或工作；Step 4: After the motor drive module receives the control signal from the microprocessor control module, the lawn mower blade is controlled to stop or work;步骤五：当所述微处理器控制模块受损失效后没有输出维持开机的控制信号给看门狗模块，所述看门狗模块即输出一制动控制信号给所述继电器模块；Step 5: After the microprocessor control module is damaged, the control signal for maintaining the power-on is not output to the watchdog module, and the watchdog module outputs a brake control signal to the relay module;步骤六：所述继电器模块接收到来自看门狗模块的制动控制信号后，将 直接断开所述割草机内电子控制板的信号回路，割草机将停止工作。 Step 6: After receiving the brake control signal from the watchdog module, the relay module will The signal circuit of the electronic control board in the mower is directly disconnected, and the mower will stop working.
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| CN107397507A (en) * | 2016-05-20 | 2017-11-28 | 苏州宝时得电动工具有限公司 | Blower and its brake method |
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