WO2012083859A1

WO2012083859A1 - Method, device and system for processing dead screen of driver machine interface

Info

Publication number: WO2012083859A1
Application number: PCT/CN2011/084396
Authority: WO
Inventors: 梁双建; 吴宏捷; 陈栋
Original assignee: 华为技术有限公司
Priority date: 2010-12-22
Filing date: 2011-12-21
Publication date: 2012-06-28
Also published as: CN102103529A

Abstract

Provided are a method, device and system for processing a dead screen of a driver machine interface. The method includes: receiving first information sent by a driver machine interface (DMI) for indicating whether the content displayed by the DMI in a preset area within a preset time is changed; judging whether or not the DMI has a dead screen according to the first information; and if the judgment result is that the DMI has a dead screen, then executing a preset operation. The present solution can achieve protection after dead screen on the DMI.

Description

人机交互界面死屏的处理方法、设备及*** 本申请要求了 2010年 12月 22日提交的、申请号为 201010601370.2, 发明名称为"人机交互界面死屏的处理方法、设备及***，，的中国申请的优先权，其全部内容通过引用结合在本申请中。技术领域 Method, device and system for processing dead screen of human-computer interaction interface, the present application claims the processing method, device and system for the human-computer interaction interface dead screen submitted by the application number 201010601370.2 submitted on December 22, 2010, Priority of the Chinese application, the entire contents of which are incorporated herein by reference.

本发明涉及通信技术，尤其涉及一种人机交互界面死屏的处理方法、设备及***。背景技术 The present invention relates to communication technologies, and in particular, to a method, device and system for processing a dead screen of a human-computer interaction interface. Background technique

司机在驾驶室内可以根据人机交互界面（Driver Machine Interface, DMI ) 的文字信息或者声音信息进行某种操作，控制列车运行。随着列车运行速度越来越快，司机如不能及时进行相应操作或者操作不正确，可能带来越来越大的危害。列车运行过程中如果 DMI突然出现死屏，由于司机无法获取信息，极有可能误操作或不操作而造成责任纠纷或者现场事故。 In the cab, the driver can perform some operation according to the text information or sound information of the Driver Machine Interface (DMI) to control the train operation. As the train runs faster and faster, the driver may not be able to perform the corresponding operation or operate incorrectly in time, which may bring more and more harm. If the DMI suddenly appears dead during the train operation, the driver may not be able to obtain the information, and there is a high possibility of misuse or non-operation resulting in a liability dispute or an on-site accident.

在铁路业务的现有技术标准中，防护主要是对车载安全计算机（ Virtual Computer, VC ) 与 DMI的通信中断的检测及防护。现有防护机制中， VC 根据 DMI的心跳信息来检测 DMI是否正常工作， DMI定期向 VC发送心跳信息，如果心跳信息不存在，则 VC发送制动命令给列车接口单元，使得列车进行制动防护。 In the current technical standards of the railway business, the protection is mainly the detection and protection of the communication interruption of the in-vehicle safety computer (Virtual Computer, VC) and DMI. In the existing protection mechanism, the VC detects whether the DMI works normally according to the heartbeat information of the DMI. The DMI periodically sends heartbeat information to the VC. If the heartbeat information does not exist, the VC sends a braking command to the train interface unit, so that the train performs braking protection. .

在实现本发明过程中，发明人发现现有技术中至少存在如下问题：现有防护是针对 DMI与 VC通信不正常后进行的，缺乏 VC与 DMI通信正常但是 DMI死屏场景下的防护方案。发明内容 In the process of implementing the present invention, the inventors have found that at least the following problems exist in the prior art: The existing protection is performed after the communication between the DMI and the VC is abnormal, and the communication scheme in the DMI dead screen scenario is lacking. Summary of the invention

本发明实施例是提供一种人机交互界面死屏的处理方法、设备及***，实现 DMI死屏场景下的防护。 The embodiment of the invention provides a method, a device and a system for processing a dead screen of a human-machine interface, and implements protection under a DMI dead screen scenario.

本发明一方面提供了一种人机交互界面死屏的处理方法，包括：显示的内容是否改变的第一信息； An aspect of the present invention provides a method for processing a dead screen of a human-computer interaction interface, including: The first information of whether the displayed content changes;

根据所述第一信息判断所述 DMI是否死屏； Determining, according to the first information, whether the DMI is dead;

若所述判断结果是所述 DMI死屏，则执行预设操作。 If the result of the determination is that the DMI is dead, the preset operation is performed.

本发明另一方面提供了一种人机交互界面死屏的处理设备，包括：间内预设区域所显示的内容是否改变的第一信息； Another aspect of the present invention provides a processing device for a dead screen of a human-computer interaction interface, including: first information indicating whether content displayed in a preset area is changed;

判断模块，用于根据所述接收模块接收的所述第一信息判断所述 DMI 是否死屏； a determining module, configured to determine, according to the first information received by the receiving module, whether the DMI is dead;

处理模块，用于在所述判断模块得到的判断结果是所述 DMI死屏时，执行预设操作。 The processing module is configured to perform a preset operation when the judgment result obtained by the determining module is that the DMI is dead.

本发明再一方面提供了一种人机交互界面死屏的处理***，包括上述的处理设备，还包括：设区域所显示的内容是否改变的第一信息。设备及***，通过判断 DMI 是否死屏并在死屏后发起预设操作，可以实现 DMI死屏后的防护。附图说明实施例或现有技术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性的前提下，还可以根据这些附图获得其他的附图。 A further aspect of the present invention provides a processing system for a dead screen of a human-machine interface, including the processing device, and further comprising: first information for setting whether the content displayed by the area is changed. The device and the system can realize the protection after the DMI dead screen by judging whether the DMI is dead and triggering a preset operation after the dead screen. BRIEF DESCRIPTION OF THE DRAWINGS The drawings, which are required in the examples or in the description of the prior art, are briefly described. Obviously, the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive labor.

图 1为本发明一实施例的方法流程示意图； 1 is a schematic flow chart of a method according to an embodiment of the present invention;

图 2为本发明另一实施例的方法流程示意图； 2 is a schematic flow chart of a method according to another embodiment of the present invention;

图 3为本发明实施例中 DMI显示界面的示意图；图 4为本发明一实施例的设备结构示意图； 3 is a schematic diagram of a DMI display interface according to an embodiment of the present invention; 4 is a schematic structural diagram of a device according to an embodiment of the present invention;

图 5为本发明另一实施例的***结构示意图。 FIG. 5 is a schematic structural diagram of a system according to another embodiment of the present invention.

具体实施方式 detailed description

为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，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他实施例，都属于本发明保护的范围。 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

图 1为本发明一实施例的方法流程示意图，包括： FIG. 1 is a schematic flowchart of a method according to an embodiment of the present invention, including:

步骤 11 : 接收 DMI发送的表明 DMI在预设时间内预设区域所显示的内容是否改变的第一信息； Step 11: receiving, by the DMI, first information indicating whether the content displayed by the DMI in the preset area is changed within a preset time;

步骤 12: 根据所述第一信息判断所述 DMI是否死屏； Step 12: determining, according to the first information, whether the DMI is dead;

步骤 13: 若判断结果是所述 DMI死屏，则执行预设操作。本实施例通过判断 DMI是否死屏并在死屏后执行预设操作，可以实现 DMI死屏后的防护。 Step 13: If the result of the judgment is that the DMI is dead, the preset operation is performed. In this embodiment, after determining whether the DMI is dead or not, and performing a preset operation after the dead screen, the DMI can be protected after the dead screen.

图 2为本发明另一实施例的方法流程示意图，包括： 2 is a schematic flowchart of a method according to another embodiment of the present invention, including:

步骤 21： DMI检测自身在预设时间内预设区域所显示的内容是否改变，若是，执行步骤 22, 否则，重复执行步骤 21。 Step 21: The DMI detects whether the content displayed in the preset area changes within the preset time. If yes, go to step 22. Otherwise, repeat step 21.

例如， DMI可以采用如下方式检测自身在预设时间内显示的内容是否改变： For example, DMI can detect whether the content displayed by itself within the preset time changes in the following way:

1 )选取所述 DMI上显示内容更换频繁的区域作为预设区域；其中，在应用时，显示内容更换频繁的区域可以是预设的，例如，用于显示时间的区域即为更换频繁的区域。 1) Selecting an area on the DMI that is frequently replaced with a content as a preset area; wherein, in an application, an area in which the display content is frequently changed may be preset, for example, an area for displaying time is a frequently replaced area. .

2 )获取所述预设区域内的像素点显示内容的特征信息； 2) acquiring feature information of the pixel point display content in the preset area;

3 )如果在所述预设时间内所述预设区域内的像素点显示内容的特征信息相同，则确定所述 DMI自身在所述预设时间内所述预设区域所显示的内容没有改变。 3) if the feature information of the pixel point display content in the preset area is the same within the preset time, determining that the DMI itself is displayed within the preset area within the preset time The capacity has not changed.

进一步地，该像素点显示内容的特征信息可以为：像素点的红绿蓝 Further, the feature information of the pixel display content may be: red, green, and blue of the pixel

( RGB )值，或者，也可以为对像素点的 RGB值进行 MD5处理后得到的 MD5值。 The (RGB) value, or alternatively, may be an MD5 value obtained by performing MD5 processing on the RGB value of the pixel.

其中，对于每个像素点，其颜色值，例如 RGB值是确定的，之后通过颜色读取工具（例如采用现有的编程方式）可以获取像素点的 RGB值。之后，将所选区域的所有像素点的 RGB值组成一个大的数据，再采用现有的信息摘要算法（Message Digest algorithm, MD5 )算法，可以得到该大的数据的 MD5值，该大的数据与 MD5值是——对应关系。 Wherein, for each pixel, its color value, for example, the RGB value is determined, and then the RGB value of the pixel can be obtained by a color reading tool (for example, using an existing programming method). After that, the RGB values of all the pixels in the selected area are combined into one large data, and the existing message digest algorithm (MD5) algorithm is used to obtain the MD5 value of the large data, the large data. The value with MD5 is - corresponding.

可以理解的是，也可以选取的其他的能够表征像素点的显示状态的值，并不限于 RGB值；另外，也可以采用其他算法，该算法得到的值可以与显示状态唯一对应，并不限于 MD5值。另外，该预设时间内各个预设区域所获取的像素点显示内容的特征信息相同可以是连续两次计算得到的 MD5值相同。 It can be understood that other values that can be selected to represent the display state of the pixel point are not limited to the RGB value. In addition, other algorithms may be used, and the value obtained by the algorithm may uniquely correspond to the display state, and is not limited to MD5 value. In addition, the feature information of the pixel point display content acquired by each preset area in the preset time period may be the same as the MD5 value calculated twice consecutively.

具体地，图 3为本发明实施例中 DMI显示界面的示意图，参见图 3 , DMI可以在该显示界面中选取四块位置固定且信息更新频繁的区域 (例如，选取用于以数字方式显示列车速度的 B1区、用于显示文本信息的 E19区、用于显示日期和时间的 E17 区、用于显示列车自动防护（ Automatic Train Protection, ATP )制动状态的 C9区）。之后，获取选取的区域内的像素点的 RGB值，根据该 RGB值计算得到 MD5值。 Specifically, FIG. 3 is a schematic diagram of a DMI display interface according to an embodiment of the present invention. Referring to FIG. 3, the DMI may select four regions with fixed positions and frequent information updates in the display interface (for example, selecting to display the train digitally) B1 area for speed, E19 area for displaying text information, E17 area for displaying date and time, C9 area for displaying automatic train protection (ATP) braking status). After that, the RGB value of the pixel in the selected area is obtained, and the MD5 value is calculated based on the RGB value.

在每次计算得到 MD5值后存储该 MD5值，如果以预设的周期连续两次计算得到的 MD5值相同，则 DMI检测出自身在预设时间内显示的内容没有改变，否则，为改变。 The MD5 value is stored after each calculation of the MD5 value. If the MD5 values calculated twice in a preset period are the same, the DMI detects that the content displayed by itself within the preset time has not changed, otherwise, it is changed.

步骤 22: DMI向 VC发送 MD5值。 Step 22: The DMI sends the MD5 value to the VC.

其中， DMI在检测出自身在预设时间内显示的内容没有改变后，可以周期性发送该 MD5值直至接收到 VC发送的停止命令。步骤 23: VC判断 DMI是否死屏，若是执行步骤 24,否则执行步骤 25。其中， VC可以存储每次收到的 MD5值，如果连续 3次（该值可以根据实际需要设定）收到同样的 MD5值，则判断出 DMI死屏，否则为未死屏。 After detecting that the content displayed by the DMI in the preset time has not changed, the DMI may periodically send the MD5 value until receiving a stop command sent by the VC. Step 23: The VC determines whether the DMI is dead. If the step 24 is performed, otherwise step 25 is performed. The VC can store the MD5 value received each time. If the same MD5 value is received 3 times in succession (the value can be set according to actual needs), it is determined that the DMI is dead, otherwise it is not dead.

步骤 24: VC将常用制动干涉线（service brake interfere, SBI )降为 0, 向列车接口单元发送制动命令。之后，执行步骤 26。 Step 24: The VC reduces the service brake interference (SBI) to 0 and sends a brake command to the train interface unit. After that, go to step 26.

具体地，可以将列车的 SBI 降为 0, VC监控列车的各曲线，当列车的 SBI降为 0时，触发 VC发送制动命令，直到列车停止运行。 Specifically, the SBI of the train can be reduced to 0, and VC monitors the curves of the train. When the SBI of the train drops to 0, the VC is triggered to send a braking command until the train stops running.

可以理解的是，也可以是 VC发送告警指示，所述告警指示用于提示进行制动操作，例如， VC发出告警信号，列车司机在觉察到该告警信号后，人工进行制动。 It can be understood that the VC may send an alarm indication, and the alarm indication is used to prompt the braking operation. For example, the VC sends an alarm signal, and the train driver manually brakes after detecting the alarm signal.

另夕卜，当应用在无线闭塞中心（Radio Block Centre, RBC ) 时， RBC 是对车载***进行控制的无线中心，可以是 RBC的操作终端或者维护终端死屏后， RBC不再向车载发送指令。此时，车载***可以根据 RBC的上次指令执行对应的操作，车载***在执行完上次指令对应的操作后停止行进。 In addition, when applied to the Radio Block Centre (RBC), the RBC is a wireless center that controls the in-vehicle system. After the RBC operation terminal or the maintenance terminal is dead, the RBC no longer sends instructions to the vehicle. . At this time, the in-vehicle system can perform the corresponding operation according to the last instruction of the RBC, and the in-vehicle system stops traveling after executing the operation corresponding to the last instruction.

步骤 25: VC向 DMI发送停止命令，以使得 DMI停止发送 MD5值。具体地， VC在接收到 DMI发送的 MD5时就进行记录，如果 VC连续 3次收到的 MD5不完全相同，则判断当前状态为非故障状态；如果连续 3 次收到的 MD5值相同，则判断当前状态为故障状态。 Step 25: The VC sends a stop command to the DMI to stop the DMI from sending the MD5 value. Specifically, the VC records when the MD5 sent by the DMI is received. If the MD5 received by the VC 3 times is not completely the same, it determines that the current state is a non-fault state; if the MD5 values received three consecutive times are the same, Determine the current state as the fault state.

固定时间后如果状态仍然没有呈现故障状态，则通知 DMI停止发送。步骤 26: 结束。 After a fixed time, if the status still does not present a fault status, the DMI is notified to stop sending. Step 26: End.

本实施例通过对 DMI的死屏检测，当死屏后控制列车制动，可以让列车自动进行防护，避免司机责任不清晰及由于死屏而可能导致的各种事故。另外，如果要求在 DMI显示正常的情况下，司机可以根据信息进行确认操作，警惕操作，窗口选择操作及加速操作，但是不能进行制动，而当 DMI 发生死屏后， VC判断出 DMI出现故障，直接进行制动，直到列车停车，而不再关注司机是否进行了某项操作，可以从根本上保证列车的安全，并且由于车载的司法记录器会记录列车制动的原因，也保证了司机的责任清晰。 In this embodiment, by detecting the dead screen of the DMI, when the train is braked after the dead screen, the train can be automatically protected to avoid unclear driver liability and various accidents that may be caused by dead screen. In addition, if the DMI display is normal, the driver can confirm the operation according to the information, alert operation, window selection operation and acceleration operation, but can not perform braking. When the DMI is dead, the VC determines that the DMI is faulty. , brake directly, until the train stops, Instead of paying attention to whether the driver has carried out an operation, the safety of the train can be fundamentally guaranteed, and since the on-board judicial recorder records the cause of the train brake, the driver's responsibility is also ensured.

图 4为本发明一实施例的设备结构示意图，包括接收模块 41、判断模块 42和处理模块 43;接收模块 41用于接收人机交互界面 DMI发送的表明所述 DMI在预设时间内预设区域所显示的内容是否改变的第一信息；判断模块 42用于根据所述接收模块接收的所述第一信息判断所述 DMI是否死屏；处理模块 43用于在所述判断模块得到的判断结果是所述 DMI死屏时，执行预设操作。 4 is a schematic structural diagram of a device according to an embodiment of the present invention, including a receiving module 41, a determining module 42 and a processing module 43. The receiving module 41 is configured to receive a human-machine interaction interface (DMI), indicating that the DMI is preset within a preset time. The first information of whether the content displayed by the area is changed; the determining module 42 is configured to determine whether the DMI is dead according to the first information received by the receiving module; and the processing module 43 is configured to obtain the judgment obtained by the determining module As a result, when the DMI is dead, the preset operation is performed.

进一步地，所述接收模块 41接收的所述第一信息是所述 DMI在确定自身在所述预设时间内所述预设区域所显示的内容没有改变后发送的。 Further, the first information received by the receiving module 41 is that the DMI is sent after determining that the content displayed by the preset area is not changed within the preset time.

所述判断模块 42可以具体用于如果在预设的次数内，连续收到的第一信息的值相同，则判断出所述 DMI死屏。 The determining module 42 may be specifically configured to determine that the DMI is dead if the values of the first information received consecutively are the same within a preset number of times.

进一步地，该设备可以为 VC, 此时处理模块 43具体用于 VC向接口单元发送制动命令，使所述接口单元根据所述制动命令进行制动操作；或者，发送告警指示，所述告警指示用于提示进行制动操作。或者，该设备为 RBC, 此时，处理模块 43具体用于停止向车载***发送指令。 Further, the device may be a VC, and the processing module 43 is specifically configured to send a braking command to the interface unit by the VC, so that the interface unit performs a braking operation according to the braking command; or, sending an alarm indication, The alarm indication is used to prompt the brake operation. Alternatively, the device is RBC, and at this time, the processing module 43 is specifically configured to stop sending instructions to the in-vehicle system.

另外，本实施例的设备还可以包括通知模块 44, 通知模块 44用于在所述判断模块得到的判断结果是所述 DMI未死屏时，向所述 DMI发送停止命令，以使所述 DMI停止发送所述第一信息。 In addition, the device in this embodiment may further include a notification module 44, where the notification module 44 is configured to send a stop command to the DMI when the judgment result obtained by the determining module is that the DMI is not dead, so that the DMI is Stop sending the first information.

本实施例通过判断 DMI是否死屏并在死屏后发起预设操作，可以实现 DMI死屏后的防护。 In this embodiment, after determining whether the DMI is dead and the preset operation is initiated after the dead screen, the DMI can be protected after the dead screen.

图 5为本发明另一实施例的***结构示意图，包括 DMI 51和处理设备 52; 处理设备 52可以具体如图 4所示， DMI 51用于向所述处理设备 52发送表明所述 DMI 在预设时间内预设区域所显示的内容是否改变的第一信息。例如，所述 DMI所述第一信息是所述 DMI在确定自身在所述预设时间内所述预设区域所显示的内容没有改变后发送的。 FIG. 5 is a schematic structural diagram of a system according to another embodiment of the present invention, including a DMI 51 and a processing device 52. The processing device 52 may be specifically shown in FIG. 4, and the DMI 51 is configured to send the processing device 52 to indicate that the DMI is in advance. Set the first information whether the content displayed in the preset area changes during the time. For example, the first information of the DMI is that the DMI is sent after determining that the content displayed by the preset area is not changed within the preset time.

进一步地，所述 DMI可以具体采用如下方式确定自身在所述预设时间内所述预设区域所显示的内容没有改变： Further, the DMI may specifically determine that the content displayed by the preset area within the preset time has not changed in the following manner:

选取所述 DMI上显示内容更换频繁的区域作为预设区域； Selecting an area on the DMI that displays frequently changed content as a preset area;

获取所述预设区域内的像素点显示内容的特征信息； Obtaining feature information of the pixel point display content in the preset area;

如果在所述预设时间内预设区域内的像素点显示内容的特征信息相同，则确定所述 DMI自身在所述预设时间内所述预设区域所显示的内容没有改变。 If the feature information of the pixel display content in the preset area is the same in the preset time, it is determined that the content displayed by the DMI itself in the preset area does not change during the preset time.

进一步地，所述 DMI获取的所述预设区域的像素点显示内容的特征信息为像素点的红绿蓝 RGB值，或者，所述 DMI具体用于获取像素点的 RGB 值 , 并对所述 RGB值进行 MD5处理 , 得到像素点的 RGB值的 MD5值 , 以所述 MD5值作为所述像素点显示内容的特征信息。 Further, the feature information of the pixel point display content of the preset area acquired by the DMI is a red, green, and blue RGB value of the pixel point, or the DMI is specifically used to acquire an RGB value of the pixel point, and the The RGB value is subjected to MD5 processing to obtain an MD5 value of the RGB value of the pixel, and the MD5 value is used as the feature information of the display content of the pixel.

另外，该处理设备可以为 VC或者 RBC, VC或者 RBC的组成可以参见图 4所述。 In addition, the processing device may be VC or RBC, and the composition of VC or RBC may be as described in FIG.

可以理解的是，上述方法及设备中的相关特征可以相互参考。 It can be understood that related features in the above methods and devices can be referred to each other.

本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括： ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码的介质。 A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions. The foregoing program may be stored in a computer readable storage medium, and when executed, the program includes The foregoing steps of the method embodiment; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。 It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: Repair the technical solutions described in the foregoing embodiments And the equivalents of the technical features of the embodiments of the present invention are not deviated from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

权利要求书 Claim

1、一种人机交互界面死屏的处理方法，其特征在于，包括：接收人机交互界面 DMI发送 A method for processing a dead screen of a human-computer interaction interface, comprising: receiving a human-machine interaction interface, sending a DMI

显示的内容是否改变的第一信息； The first information of whether the displayed content changes;

2、根据权利要求 1 所述的方法，其特征在于，所述第一信息是所述 DMI在确定自身在所述预设时间内所述预设区域所显示的内容没有改变后发送的。 2. The method according to claim 1, wherein the first information is that the DMI is sent after determining that the content displayed by the preset area is not changed within the preset time.

3根据权利要求 2所述的方法，其特征在于，所述 DMI在确定自身在所述预设时间内所述预设区域所显示的内容没有改变，包括： The method according to claim 2, wherein the determining, by the DMI, that the content displayed by the preset area is not changed within the preset time, includes:

如果在所述预设时间内所述预设区域内的像素点显示内容的特征信息相同，则确定所述 DMI自身在所述预设时间内所述预设区域所显示的内容没有改变。 If the feature information of the pixel display content in the preset area is the same within the preset time, it is determined that the content displayed by the DMI itself in the preset area does not change during the preset time.

4、根据权利要求 3所述的方法，其特征在于，所述获取所述预设区域内的像素点显示内容的特征信息，包括： The method according to claim 3, wherein the acquiring the feature information of the pixel point display content in the preset area comprises:

获取所述像素点的红绿蓝 RGB值作为所述像素点显示内容的特征信息； Obtaining red, green and blue RGB values of the pixel as characteristic information of the content displayed by the pixel;

或者， Or,

获取所述像素点的 RGB值，并对所述 RGB值进行 MD5处理，得到所述像素点的 RGB值的 MD5值，以所述 MD5值作为所述像素点显示内容的特征信息。 Obtaining an RGB value of the pixel, and performing MD5 processing on the RGB value to obtain an MD5 value of the RGB value of the pixel point, and using the MD5 value as the feature information of the pixel point display content.

5、根据权利要求 1-4任一项所述的方法，其特征在于，所述执行预设操作，包括：车载安全计算机 VC向接口单元发送制动命令，使所述接口单元根据所述制动命令进行制动操作； The method according to any one of claims 1 to 4, wherein the performing the preset operation comprises: The vehicle safety computer VC sends a brake command to the interface unit, so that the interface unit performs a braking operation according to the brake command;

或者， Or,

VC发送告警指示，所述告警指示用于提示进行制动操作； The VC sends an alarm indication, and the alarm indication is used to prompt the braking operation;

或者， Or,

无线闭塞中心 RBC停止向车载***发送指令。 Wireless Block Center The RBC stops sending commands to the in-vehicle system.

6、根据权利要求 1所述的方法，其特征在于，所述根据所述第一信息判断所述 DMI是否死屏，包括： The method according to claim 1, wherein the determining, according to the first information, whether the DMI is dead, comprises:

如果在预设的次数内，连续收到的第一信息的值相同，则判断出所述 DMI死屏。 If the values of the consecutively received first information are the same within a preset number of times, it is determined that the DMI is dead.

7、根据权利要求 1所述的方法，其特征在于，还包括： 7. The method according to claim 1, further comprising:

若判断结果是所述 DMI未死屏，则向所述 DMI发送停止命令，以使所述 DMI停止发送所述第一信息。 If the result of the determination is that the DMI is not dead, a stop command is sent to the DMI to stop the DMI from transmitting the first information.

8、一种人机交互界面死屏的处理设备，其特征在于，包括：间内预设区域所显示的内容是否改变的第一信息； A processing device for a dead screen of a human-computer interaction interface, comprising: first information of whether content displayed in the preset area is changed;

9、根据权利要求 8所述的设备，其特征在于，所述接收模块接收的所的内容没有改变后发送的。 9. The device according to claim 8, wherein the content received by the receiving module is sent without being changed.

10、根据权利要求 8所述的设备，其特征在于，所述判断模块具体用于如果在预设的次数内，连续收到的第一信息的值相同，则判断出所述 DMI 死屏。 11、根据权利要求 8所述的设备，其特征在于， The device according to claim 8, wherein the determining module is configured to determine that the DMI dead screen is determined if the values of the first information that are continuously received are the same within a preset number of times. 11. Apparatus according to claim 8 wherein:

所述设备为车载安全计算机 VC, 所述处理模块具体用于 VC向接口单元发送制动命令，使所述接口单元根据所述制动命令进行制动操作；或者，发送告警指示，所述告警指示用于提示进行制动操作； The device is an in-vehicle safety computer VC, and the processing module is specifically configured to send a braking command to the interface unit by the VC, so that the interface unit performs a braking operation according to the braking command; or sends an alarm indication, the alarm The indication is used to prompt the braking operation;

或者， Or,

所述设备为无线闭塞中心 RBC, 所述处理模块具体用于停止向车载系统发送指令。 The device is a wireless blocking center RBC, and the processing module is specifically configured to stop sending an instruction to the in-vehicle system.

12、根据权利要求 8所述的设备，其特征在于，还包括： 12. The device according to claim 8, further comprising:

通知模块，用于在所述判断模块得到的判断结果是所述 DMI未死屏时，向所述 DMI发送停止命令，以使所述 DMI停止发送所述第一信息。 And a notification module, configured to send a stop command to the DMI when the judgment result obtained by the determining module is that the DMI is not dead, so that the DMI stops sending the first information.

13、一种人机交互界面死屏的处理***，其特征在于，包括如权利要求 8-12中任一项所述的处理设备，还包括： A processing system for a human-machine interface dead screen, comprising: the processing device according to any one of claims 8-12, further comprising:

人机交互界面 DMI,用于向所述处理设备发送表明所述 DMI在预设时间内预设区域所显示的内容是否改变的第一信息。 The human-machine interface DMI is configured to send, to the processing device, first information indicating whether the content displayed by the DMI in the preset area is changed within a preset time.

14、根据权利要求 13所述的***，其特征在于，所述 DMI发送的所的内容没有改变后发送的。 The system according to claim 13, wherein the content sent by the DMI is sent without being changed.

15、根据权利要求 14所述的***，其特征在于，所述 DMI具体采用如下方式确定自身在所述预设时间内所述预设区域所显示的内容没有改变： The system according to claim 14, wherein the DMI determines that the content displayed by the preset area is not changed within the preset time by using the following manner:

16、根据权利要求 15所述的***，其特征在于，所述 DMI获取的所述预设区域的像素点显示内容的特征信息为像素点的红绿蓝 RGB值，或者，所述 DMI具体用于获取像素点的 RGB值，并对所述 RGB值进行 MD5处理，得到像素点的 RGB值的 MD5值，以所述 MD5值作为所述像素点显示内容的特征信息。 16. The system according to claim 15, wherein the DMI acquires the location The feature information of the pixel display content of the preset area is the red, green and blue RGB value of the pixel, or the DMI is specifically used to obtain the RGB value of the pixel, and the RGB value is MD5 processed to obtain the pixel point. The MD5 value of the RGB value is used as the feature information of the content displayed by the pixel point.

17、根据权利要求 13所述的***，其特征在于，所述处理设备为车载安全计算机 VC或者为无线闭塞中心 RBC。 17. The system according to claim 13, wherein the processing device is an in-vehicle security computer VC or a wireless blocking center RBC.