WO2021129884A1 - 一种视频拼接墙处理器控制装置 - Google Patents

一种视频拼接墙处理器控制装置 Download PDF

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WO2021129884A1
WO2021129884A1 PCT/CN2020/141740 CN2020141740W WO2021129884A1 WO 2021129884 A1 WO2021129884 A1 WO 2021129884A1 CN 2020141740 W CN2020141740 W CN 2020141740W WO 2021129884 A1 WO2021129884 A1 WO 2021129884A1
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temperature
control system
temperature detection
detection device
splicing wall
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PCT/CN2020/141740
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English (en)
French (fr)
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吴清强
王飞
蔡松江
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威创集团股份有限公司
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/20—Cooling means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
    • G06F11/3024—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system component is a central processing unit [CPU]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/3058—Monitoring arrangements for monitoring environmental properties or parameters of the computing system or of the computing system component, e.g. monitoring of power, currents, temperature, humidity, position, vibrations

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  • the invention relates to the field of video splicing walls, and more specifically, to a video splicing wall processor control device.
  • the video splicing wall processor is the key to the normal operation of the splicing wall.
  • the power consumption of the CPU for processing the data is also large, and the whole processor contains decoding Chips, encoding chips, CPUs, resistors and capacitors, power chips and other electronic devices are very dense in space, which can easily lead to excessive temperature of the device.
  • each device chip requires strict working surface temperature requirements. After the temperature range is exceeded, the device will fail, resulting in unstable system operation, data conversion errors, and even CPU damage.
  • the price of the CPU for processing video signals is very expensive, and the cost of replacing the CPU is relatively high.
  • the traditional solution is to perform a single ambient temperature detection inside the whole processor, and determine whether to perform fan cooling according to the temperature parameter value. Because it detects a single ambient temperature and cannot accurately determine the surface of the CPU As a result, the fan cannot be in the best working state due to temperature, and the power consumption of different devices is different, which causes a certain degree of energy waste and cannot truly realize effective heat dissipation of the processor's devices.
  • the present invention aims to overcome at least one defect (deficiency) of the above-mentioned prior art and provide a video splicing wall processor control device, which can effectively control the heat dissipation to the processor and reduce the failure rate of the processor chip.
  • the technical scheme adopted by the present invention is a video splicing wall processor control device, including a control system, a number of temperature detection devices, and a number of cooling fans;
  • the temperature detection device includes a first temperature detection device and a second temperature detection device; the first temperature detection device is used to detect the temperature of the surface of the CPU chip; the second temperature detection device is used to detect the ambient temperature of the CPU chip;
  • the first and second temperature detection devices are respectively electrically connected to the control system, and send the temperature value detected in real time to the control system;
  • the cooling fan is electrically connected to the control system, and the real-time rotational speed frequency of the cooling fan is sent to the control system;
  • the control system compares the received temperature value with the surface temperature required by the CPU chip after being processed by an algorithm, and controls the rotation speed gear of the corresponding cooling fan according to the compared temperature difference of each path.
  • the present invention provides a video splicing wall processor control device, which adopts multi-channel temperature detection in all directions, and can accurately describe the actual temperature of the current processor chassis and the surface temperature value of the processor CPU. It is helpful to achieve the best fan speed and the best working state of the chip, and avoids the problem of abnormal system operation or abnormal video data collection and conversion caused by excessive temperature caused by the surface temperature of the chip exceeding the chip design requirements, which solves the traditional
  • the large temperature error of a single position detection leads to the problem of excessively high temperature of the CPU chip, which reduces the failure rate of the processor chip.
  • Figure 1 is a schematic diagram of the structure of the present invention.
  • Figure 2 is a schematic diagram of the fan speed calculation method.
  • this embodiment proposes a processing method for the heat dissipation of the video mosaic wall processor, which is provided with a number of temperature sensors and Several cooling fans, some of the temperature sensors are used to detect the surface temperature of the CPU chip of the mosaic wall processor, and some temperature sensors are used to detect the ambient temperature of the CPU chip; the temperature value detected by the temperature sensor is processed by the matrix algorithm and then combined with the CPU The surface temperature required by the chip is compared, and the speed gear of the corresponding heat sink is controlled according to the temperature difference of each path.
  • the solution proposed in this embodiment is: by arranging temperature sensors on the surface of the processor CPU chip and around the processor, real-time monitoring of the surface temperature of the sampling processor CPU and ambient temperature, and passing the surface temperature and ambient temperature values of the processor CPU After the matrix algorithm is processed, it is compared with the surface temperature value required by the CPU chip, and the speed of the fan in different positions of the corresponding processor chassis is controlled according to the temperature difference of each channel obtained from the comparison, thereby realizing a full range The parameter value of temperature monitoring controls the fan speed gear.
  • the solution of this embodiment not only realizes all-round temperature monitoring, but also effectively dissipates the CPU and the codec chip of the processor, and effectively reduces the failure rate of the CPU chip of the processor.
  • the video splicing wall processor control device includes a control system, a number of temperature detection devices, and a number of cooling fans;
  • the temperature detection device includes a first temperature detection device and a second temperature detection device;
  • a temperature detection device is used to detect the temperature of the surface of the CPU chip;
  • the second temperature detection device is used to detect the ambient temperature of the CPU chip;
  • the first and second temperature detection devices are respectively electrically connected to the control system, and the real-time The detected temperature value is sent to the control system;
  • the cooling fan is electrically connected to the control system, and the real-time speed frequency of the cooling fan is sent to the control system;
  • the control system responds to the received temperature value After the algorithm is processed, it is compared with the surface temperature required by the chip, and the speed gear of the corresponding cooling fan is controlled according to the temperature difference of each path.
  • this embodiment mainly distributes 15 temperature sensors (including 10 first temperature sensors and 5 second temperature sensors) around the processor chassis and the surface of the processor CPU chip.
  • Five first temperature sensors arranged on the surface of the CPU chip of the processor correspond to linkage control of one fan, and the other five second temperature sensors correspond to linkage control of two cooling fans.
  • the control system samples the temperature value of each channel of the processor chassis and the surface temperature value of the processor CPU chip in real time. At the same time, it also samples the current speed and frequency of the cooling fan in real time, and displays the sampled parameter values on the LED display in real time.
  • the control program adjusts the fan's speed gear through PWM pulses, and uses the best fan speed to reduce the processor case temperature and the CPU surface temperature.
  • the cooling fan has multiple gear positions.
  • the control system will adjust to the corresponding gear position according to the temperature value, such as: low speed, medium speed, and high speed, so as to reduce the fan speed using yoga Processor case temperature and CPU surface temperature.
  • the acquisition/processing board in FIG. 1 refers to the splicing wall processing board; the first temperature detection device is arranged on the surface of the CPU chip; the second temperature detection device is arranged around the processor.
  • the current temperature can be displayed by setting the LED display. It is convenient for people to monitor the working condition of the processor through the data displayed on the LED display.
  • the LED panel can display the current multi-channel temperature value and multi-channel fan speed value in real time, which is helpful for manually judging the current temperature value and fan speed of the processor chassis and CPU through the data displayed on the display. It is helpful to judge whether the chip is working abnormally due to high ambient temperature or other factors, which is easy for problem analysis.
  • this embodiment also has a solution for temperature and fan abnormal alarm functions: when the temperature value exceeds the temperature value preset by the program or the fan speed exceeds the preset speed frequency value, the system will start the buzzer. Temperature alarm or fan abnormal alarm, and the current CPU abnormal information is displayed on the LED display. The buzzer alarm information can be cleared by the keyboard clear button, and the display alarm information can be refreshed by the keyboard refresh button. By setting the abnormal warning buzzer instructions, this solution helps to know the current working status of the processor in time, and avoids problems such as system crashes and permanent chip damage due to excessive time under abnormal conditions.
  • the level and signal standard protocol can be determined according to the needs.
  • the standard TTL signal protocol and 5V level standard are adopted. Since the signal level output by the control system is 3.3V, the driving ability is weak, so it is necessary to convert the driving level to an interface standard compatible with 5V level. , To display the collected temperature value and fan speed frequency value in normal real-time.
  • this embodiment uses 15 channels of 16-bit high-precision temperature sensors for omni-directional collection.
  • the temperature signals output by the sensors are divided into analog signals and digital signals.
  • This embodiment uses a digital signal temperature sensor. Conducive to signal routing, strong anti-interference ability, easy data conversion and calculation.
  • the present invention controls the fan speed gear by pulse adjustment according to the current actual temperature value around the processor, and calculates the current speed N, that is, the current speed gear by detecting the frequency of the fan and calculating the period.
  • the calculation method of fan speed N is shown in Figure 2.
  • the present invention adopts a standard key operation mode, supports control system reset, abnormal buzzer alarm clearing, and LED display data refresh function.
  • serial port The communication between the serial port and PC adopts standard RS232 communication, which is mainly used for program burning, debugging and timing data analysis.

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  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

一种视频拼接墙处理器控制装置，包括控制系统、若干温度检测装置、若干散热风扇；温度检测装置包括第一温度检测装置和第二温度检测装置；第一温度检测装置用于检测CPU芯片表面的温度；第二温度检测装置用于检测CPU芯片的环境温度；第一、第二温度检测装置分别与控制系统电连接，将实时检测的温度值发送给所述控制系统；散热风扇与所述控制系统电连接，并将所述散热风扇的实时转速频率发送给所述控制系统；所述控制系统对接收到的温度值通过算法处理后与CPU芯片要求的表面温度进行比较，根据比较的每路温度差值来控制对应的散热风扇的转速档位。该装置采用多路温度全方位检测，有利于实现风扇和芯片的最佳工作状态，降低芯片的失效率。

Description

一种视频拼接墙处理器控制装置
本申请要求于2019年12月27日提交中国专利局、申请号为201911382014.3、发明名称为“一种视频拼接墙处理器控制装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及视频拼接墙领域，更具体地，涉及一种视频拼接墙处理器控制装置。
背景技术
近年来，大尺寸屏幕发展迅速，广泛应用于通信、电力、军队指挥机构等领域，大屏幕是通过多个显示单元相互拼接而成，因而又被称为视频拼接墙。
其中视频拼接墙处理器是拼接墙的正常运行的关键。在拼接墙处理器整机系统应用中，要完成视频数据转换、数据编解码处理等功能，由于处理的数据量大，导致处理数据的CPU需要的功耗也大，而且整机处理器包含解码芯片、编码芯片、CPU、电阻电容、电源芯片等各种电子器件，空间非常密集，很容易导致器件温度过高。而要保证处理器的正常工作，这就要求每种器件芯片都有严格的工作表面温度要求，超过温度范围后，器件就会失效，出现系统工作不稳定，数据转换错误，甚至CPU损坏的情况，而处理视频信号的CPU价格非常昂贵，更换CPU的成本较高。
针对上述缺点，传统的解决方案是在整机处理器内部进行单一的环境温度检测，根据温度参数值决定是否进行风扇散热，由于其检测的是单一的环境温度，且无法准确地判断CPU的表面温度，从而导致风扇不能处于最佳的工作状态，且不同的器件的功耗不同，这样就造成了一定程度上的能源浪费，也无法真正实现对处理器的器件的有效散热。
发明内容
本发明旨在克服上述现有技术的至少一种缺陷(不足)，提供一种视频 拼接墙处理器控制装置，能够有效控制对处理器的散热，降低处理器芯片的失效率。
本发明采取的技术方案是，一种视频拼接墙处理器控制装置，包括控制系统、若干温度检测装置、若干散热风扇；
所述温度检测装置包括第一温度检测装置和第二温度检测装置；所述第一温度检测装置用于检测CPU芯片表面的温度；所述第二温度检测装置用于检测CPU芯片的环境温度；
所述第一、第二温度检测装置分别与所述控制系统电连接，将实时检测的温度值发送给所述控制系统；
所述散热风扇与所述控制系统电连接，并将所述散热风扇的实时转速频率发送给所述控制系统；
所述控制系统对接收到的温度值通过算法处理后与CPU芯片要求的表面温度进行比较，根据比较的每路温度差值来控制对应的散热风扇的转速档位。
与现有技术相比，本发明提供了一种视频拼接墙处理器控制装置，采用多路温度全方位检测，能够准确的说明当前处理器机箱的实际温度和处理器CPU的表面温度值，有利于实现最佳的风扇转速和芯片的最佳工作状态，避免了因温度过高而导致的芯片表面温度超过芯片设计要求，从而出现的系统工作异常或视频数据采集转换异常的现象，解决了传统单一位置检测温度误差大而导致CPU芯片温度过高问题，降低处理器芯片的失效率。
附图说明
图1为本发明的结构示意图。
图2为风扇转速计算方法示意图。
具体实施方式
本发明附图仅用于示例性说明，不能理解为对本发明的限制。为了更 好说明以下实施例，附图某些部件会有省略、放大或缩小，并不代表实际产品的尺寸；对于本领域技术人员来说，附图中某些公知结构及其说明可能省略是可以理解的。
实施例
为解决视频拼接墙处理器的散热问题，有效控制处理器的散热问题，降低处理器芯片的失效率，本实施例提出了一种视频拼接墙处理器散热的处理方法，设有若干温度传感器和若干散热风扇，其中部分温度传感器用于检测拼接墙处理器CPU芯片的表面温度，部分温度传感器用于检测CPU芯片的环境温度；将所述温度传感器检测到的温度值通过矩阵算法处理后和CPU芯片要求的表面温度进行比较，根据比较的每路温度差值控制对应的散热装置的转速档位。
本实施例提出的方案是：通过将温度传感器设置在处理器CPU芯片表面和处理器四周，实时监控采样处理器CPU表面温度和环境温度，并在对处理器CPU表面温度值和环境温度值通过矩阵算法处理后，再与CPU芯片要求的表面温度值进行比较，根据比较得出的每路温度差值来控制其对应的处理器机箱不同位置的风扇的转速档位，从而实现了根据全方位温度监控的参数值去控制风扇转速档位。与传统的单一温度监控方案对比，本实施例的方案不仅实现了全方位温度监控，对处理器的CPU、编解码芯片进行有效的散热，有效降低了处理器CPU芯片的失效率。
具体地，本实施例提供的视频拼接墙处理器控制装置，包括控制系统、若干温度检测装置、若干散热风扇；所述温度检测装置包括第一温度检测装置和第二温度检测装置；所述第一温度检测装置用于检测CPU芯片表面的温度；所述第二温度检测装置用于检测CPU芯片的环境温度；所述第一、第二温度检测装置分别与所述控制系统电连接，将实时检测的温度值发送给所述控制系统；所述散热风扇与所述控制系统电连接，并将所述散热风扇的实时转速频率发送给所述控制系统；所述控制系统对接收到的温度值通过算法处理后与芯片要求的表面温度进行比较，根据比较的每路温度差值来控制对应的散热风扇的转速档位。
具体地，如图1所示，本实施例主要是将15路温度传感器(包括10 路第一温度传感器和5路第二温度传感器)分布在处理器机箱的四周和处理器CPU芯片表面，每5个设置在处理器CPU芯片表面的第一温度传感器对应联动控制一个风扇，另外的5路第二温度传感器对应联动控制2个散热风扇。控制系统实时采样分布在处理器机箱的每路温度值和处理器CPU芯片的表面温度值，同时也实时采样散热风扇当前的转速频率值，并将采样的参数值实时显示在LED显示屏上，当温度过高但未超过预先设定的参数时，控制程序通过PWM脉冲调节风扇的转速档位，利用最佳的风扇转速去降低处理器机箱温度和CPU表面温度。散热风扇设有多个档位，当采样的温度值超过预设温度值时，控制系统会根据温度值调节至相应档位，如：低速、中速、高速，从而实现利用瑜伽的风扇转速降低处理器机箱温度和CPU表面温度。其中，图1中的采集/处理板指的就是拼接墙处理板；第一温度检测装置设置在CPU芯片表面；所述第二温度检测装置设置在处理器的四周。当多个温度传感器连通一个散热风扇时，只要任何一路温度传感器的温度值超过预先设定的值，就会根据温度值调整风扇转速。因为CPU芯片价格昂贵，一个需几百美元，所以本实施例的方案需要保证每颗CPU芯片的表面温度属于芯片要求范围内。
为了避免出现处理器散热量过大，即使所有风扇最大转速工作也无法降低至芯片要求的表面温度，或出现风扇异常等情况，本方案有助于人工监控，通过设置LED显示屏显示当前的温度值和风扇转速值，方便人通过LED显示屏显示的数据监控处理器的工作情况。LED面板能够实时显示当前多路温度值和多路风扇转速值，有利于人工通过显示屏显示的数据判断当前处理器机箱和CPU所处的温度值和风扇转速，当处理器工作异常时，也有利于判断是环境温度过高导致芯片工作异常还是其他因素导致工作异常，易于问题分析。
另外，本实施例还同时具有温度、风扇异常告警功能的方案：当有温度值超过程序预先设定的温度值时或风扇转速超过预先设定的转速频率值时，系统会启动蜂鸣器过温告警或者风扇异常告警，并通过LED显示屏显示当前CPU异常信息。蜂鸣器告警信息可通过键盘清除按键进行清除，显示屏告警信息可通过键盘刷新按键进行信息刷新。本方案通过设置异常告 警蜂鸣器指示，有利于及时知道当前处理器的工作状态，避免因在异常情况下时间过长而导致系统死机、芯片永久损坏等问题。
其中，对于LED显示屏接口电平标准，不同的电平标准和不同的信号接口协议，对应不同的电平信号电路设计，可以按需确定的电平和信号标准协议进行设计。在本实施例中，采用标准的TTL信号协议和5V电平标准，由于控制系统输出的信号电平是3.3V，驱动能力弱，因此还需要通过驱动电平转换为兼容5V电平的接口标准，以正常实时显示采集的温度值和风扇转速频率值。
对于处理器机箱温度监控，本实施例采用15路16位高精度的温度传感器进行全方位采集，传感器输出的温度信号分为模拟信号和数字信号，本实施例采用了数字信号温度传感器，不仅有利于信号的走线，抗干扰能力也强，易于数据转换和计算。
针对温度散热，本发明根据当前处理器周围的实际温度值，通过脉冲调节的方式控制风扇转速档位，并通过检测风扇的频率计算周期，从而计算出当前的转速N，即当前转速档位。风扇转速N计算方法如图2所示。TS＝60/N；N＝R.P.M，其中，TS是信号2个脉冲周期，单位为秒；N指的是每秒的转速。
对于键盘，本发明采用的是标准的按键操作方式，支持控制系统复位，异常蜂鸣器告警清除，LED显示屏数据刷新功能。
串口与PC通信采用标准RS232通信，主要用于程序烧录、调试和时序数据分析。
显然，本发明的上述实施例仅仅是为清楚地说明本发明技术方案所作的举例，而并非是对本发明的具体实施方式的限定。凡在本发明权利要求书的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明权利要求的保护范围之内。

Claims (10)

  1. 一种视频拼接墙处理器控制装置，其特征在于，包括控制系统、若干温度检测装置、若干散热风扇；
    所述温度检测装置包括第一温度检测装置和第二温度检测装置；所述第一温度检测装置用于检测CPU芯片表面的温度；所述第二温度检测装置用于检测CPU芯片的环境温度；
    所述第一、第二温度检测装置分别与所述控制系统电连接，将实时检测的温度值发送给所述控制系统；
    所述散热风扇与所述控制系统电连接，并将所述散热风扇的实时转速频率发送给所述控制系统；
    所述控制系统对接收到的温度值通过处理后与CPU芯片要求的表面温度进行比较，根据比较的每路温度差值来控制对应的散热风扇的转速档位。
  2. 根据权利要求1所述的视频拼接墙处理器控制装置，其特征在于，所述CPU芯片的环境温度包括CPU芯片四周的温度和/或机箱四周的温度。
  3. 根据权利要求2所述的视频拼接墙处理器控制装置，其特征在于，所述控制系统实时采样分布在机箱的每路温度值和CPU表面温度值，同时也实时采样当前风扇的转速频率值，当温度过高且未超过预先设定的参数时，控制系统根据温度值调节风扇的转速档位，降低处理器机箱温度和CPU表面温度。
  4. 根据权利要求1所述的视频拼接墙处理器控制装置，其特征在于，所述散热风扇的转速采用PWM脉冲控制。
  5. 根据权利要求2所述的视频拼接墙处理器控制装置，其特征在于，所述控制系统实时采集多个所述第一温度检测装置并联动控制1个所述散热风扇。
  6. 根据权利要求5所述的视频拼接墙处理器控制装置，其特征在于，所述第一温度检测装置为10个，且每5个所述第一温度检测装置对应联动1个所述散热风扇；所述第二温度检测装置5个，且对应联动2个所述散 热风扇。
  7. 根据权利要求1～6任一项所述的视频拼接墙处理器控制装置，其特征在于，还包括LED显示屏，所述LED显示屏与所述控制系统电连接；所述控制系统接收到的实时检测温度值、风扇转速频率值实时显示在LED显示屏上。
  8. 根据权利要求7所述的视频拼接墙处理器控制装置，其特征在于，还包括与所述控制系统电连接的告警装置；当有温度值超过程序预先设定的温度值时或风扇转速超过预先设定的转速频率值时，控制系统会启动告警装置，发出过温告警或者风扇异常告警，并通过LED显示屏显示当前处理器的异常信息。
  9. 根据权利要求8所述的视频拼接墙处理器控制装置，其特征在于，还包括键盘，所述键盘与所述控制系统电连接，所述键盘包括清除按键和刷新按键，通过按压键盘的清除按键能够消除告警装置告警信息，按压刷新按键能够刷新显示屏告警信息。
  10. 根据权利要求1所述的视频拼接墙处理器控制装置，其特征在于，所述温度检测装置采用数字信号温度传感器。
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