CN114518192B - Detection circuit for mobile base station - Google Patents

Detection circuit for mobile base station Download PDF

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CN114518192B
CN114518192B CN202210177051.6A CN202210177051A CN114518192B CN 114518192 B CN114518192 B CN 114518192B CN 202210177051 A CN202210177051 A CN 202210177051A CN 114518192 B CN114518192 B CN 114518192B
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resistor
diode
detection circuit
respectively connected
operational amplifier
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CN114518192A (en
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高玲
赵转莉
张慧宁
朱海英
杨亚男
闫治宇
袁英
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Yellow River Conservancy Technical Institute
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/08—Means for indicating or recording, e.g. for remote indication
    • G01L19/086—Means for indicating or recording, e.g. for remote indication for remote indication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Alarm Systems (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

The invention discloses a detection circuit for a mobile base station, which effectively solves the problem that the detection mode of an expansion valve in the mobile base station is influenced by the prior art. The first detection circuit detects pressure signals of a high pressure side and a low pressure side of a compressor in a mobile base station by using the pressure sensor U1A and the pressure sensor U1B, and compares the pressure signals respectively, so as to output a first high level to a second detection circuit, the second detection circuit detects a temperature signal in a compressor pipeline by using the thermistor R10, calculates the temperature signal, then outputs a difference signal, calculates the difference signal with the first high level output by the first detection circuit, and then judges the difference signal, so as to output a reminding signal and an emergency signal to a monitoring center, and further ensures that the mobile base station normally carries out information transmission.

Description

一种用于移动基站的检测电路A detection circuit for mobile base station

技术领域technical field

本发明涉及移动基站检测领域，特别是一种用于移动基站的检测电路。The invention relates to the field of mobile base station detection, in particular to a detection circuit for a mobile base station.

背景技术Background technique

移动基站即公用移动通信移动基站，是移动设备接入互联网的接口设备，也是无线电台站的一种形式，是指在一定的无线电覆盖区中，通过移动通信交换中心，与移动电话终端之间进行信息传递的无线电收发信电台，其内部设备的正常工作才能保证移动基站进行信息传递。于是，针对移动基站设置了空调来保证移动基站内的环境保持恒定，从而在保证移动基站的正常工作上起到了较为明显的效果。The mobile base station is the public mobile communication mobile base station, which is the interface device for mobile devices to access the Internet, and is also a form of radio station. It refers to the connection between mobile communication switching centers and mobile phone terminals in a certain radio coverage area. The radio transceiver station for information transmission, the normal operation of its internal equipment can ensure the information transmission of the mobile base station. Therefore, an air conditioner is set up for the mobile base station to ensure that the environment inside the mobile base station remains constant, thus playing a relatively obvious effect in ensuring the normal operation of the mobile base station.

而移动基站内的空调就作为了需要进行维护的重点设备之一，但是据了解，因为空调内的膨胀阀出现异常导致空调故障，进而造成移动基站无法传递信息的事件不在少数，但由于膨胀阀较为特殊，相应地可以控制压缩机内的压力，也容易发生脏堵，即膨胀阀出现问题时相应地会导致空调发生故障，进而影响到移动基站进行的信息传递的工作，对此现有技术采用定时清理或利用传感器来检测膨胀阀发生脏堵后产生报警信号至监控中心的方式进行维护，虽起到了一定效果，但是前者无法准确掌握膨胀阀的准确堵塞时间，造成人力资源浪费或是无法保证移动基站的安全的问题，而后者的传感器一般会在堵塞到达阈值时才会产生报警信号，而这时，堵塞已经发生，从而威胁到移动基站的安全。The air conditioner in the mobile base station is one of the key equipment that needs to be maintained. However, it is understood that the failure of the air conditioner due to the abnormality of the expansion valve in the air conditioner is not uncommon, resulting in the failure of the mobile base station to transmit information. It is rather special, correspondingly, the pressure in the compressor can be controlled, and it is also prone to dirty blockage, that is, when the expansion valve has a problem, it will cause the air conditioner to malfunction, which will affect the information transmission work of the mobile base station. For this, the existing technology Regular cleaning or the use of sensors to detect the dirty blockage of the expansion valve and then generate an alarm signal to the monitoring center for maintenance. Although it has achieved certain results, the former cannot accurately grasp the exact blockage time of the expansion valve, resulting in waste of human resources or failure. The problem of ensuring the safety of the mobile base station, and the latter sensor will generally generate an alarm signal when the blockage reaches the threshold, and at this time, the blockage has already occurred, thus threatening the safety of the mobile base station.

因此本发明提供一种的新的方案来解决此问题。Therefore, the present invention provides a novel solution to solve this problem.

发明内容Contents of the invention

针对现有技术存在的不足，本发明目的是提供一种用于移动基站的检测电路，有效的解决了现有技术针对移动基站内的膨胀阀的检测方式还是对移动基站产生影响的问题。Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a detection circuit for a mobile base station, which effectively solves the problem that the prior art detects the expansion valve in the mobile base station or affects the mobile base station.

其解决的技术方案是，一种用于移动基站的检测电路，所述检测电路包括第一检测电路与第二检测电路，所述第一检测电路利用压力传感器U1A和压力传感器U1B检测移动基站内压缩机高压侧与低压侧的压力信号，并分别进行比较，从而输出第一高电平至第二检测电路，所述第二检测电路利用热敏电阻R10来检测压缩机管道内的温度信号，并将温度信号进行运算后输出差值信号，并利用差值信号与第一检测电路输出的第一高电平进行运算后将差值信号进行判断，从而输出提醒信号与紧急信号至监控中心。The technical solution is a detection circuit for a mobile base station, the detection circuit includes a first detection circuit and a second detection circuit, and the first detection circuit uses the pressure sensor U1A and the pressure sensor U1B to detect The pressure signals of the high-pressure side and the low-pressure side of the compressor are compared respectively, so as to output the first high level to the second detection circuit, and the second detection circuit uses the thermistor R10 to detect the temperature signal in the compressor pipeline, And the temperature signal is calculated to output a difference signal, and the difference signal is judged by calculating the difference signal and the first high level output by the first detection circuit, thereby outputting a reminder signal and an emergency signal to the monitoring center.

进一步地，所述第一检测电路利用压力传感器U1A和压力传感器U1B检测移动基站内压缩机高压侧与低压侧的压力信号，并将两压力信号分别进行比较从而产生第一高电平，并将第一高电平输出至第二检测电路。Further, the first detection circuit uses the pressure sensor U1A and the pressure sensor U1B to detect the pressure signals of the high-pressure side and the low-pressure side of the compressor in the mobile base station, and compares the two pressure signals to generate a first high level, and The first high level is output to the second detection circuit.

进一步地，所述第一检测电路包括电阻R1，电阻R1的一端与压力传感器U1A的out引脚相连接，电阻R1的另一端分别与运放器U3A的同相端相连接，运放器U3A的反相端分别连接电阻R3的一端、电阻R5的一端，电阻R3的另一端分别连接压力传感器U1A的vcc引脚、压力传感器U1B的vcc引脚并连接正极性电源VCC，电阻R5的另一端分别连接运放器U2A的反相端、可变电阻R6的一端，运放器U2A的同相端与电阻R2的一端相连接，电阻R2的另一端与压力传感器U1B的out引脚相连接，运放器U2A的输出端与二极管D3的正极相连接，二极管D3的负极与二极管D12的正极相连接，二极管D12的负极分别连接电阻R4的一端、二极管D13的负极，二极管D13的正极与二极管D2的负极相连接，二极管D2的正极与运放器U3A的输出端相连接，电阻R4的另一端分别连接可变电阻R6的另一端、压力传感器U1A的gnd引脚、压力传感器U1B的gnd引脚并连接地。Further, the first detection circuit includes a resistor R1, one end of the resistor R1 is connected to the out pin of the pressure sensor U1A, and the other end of the resistor R1 is respectively connected to the non-inverting terminal of the op amp U3A, and the op amp U3A The inverting terminal is respectively connected to one end of resistor R3 and one end of resistor R5, the other end of resistor R3 is respectively connected to the vcc pin of pressure sensor U1A, the vcc pin of pressure sensor U1B and connected to the positive polarity power supply VCC, and the other end of resistor R5 is respectively Connect the inverting end of the op amp U2A and one end of the variable resistor R6, the non-inverting end of the op amp U2A is connected to one end of the resistor R2, the other end of the resistor R2 is connected to the out pin of the pressure sensor U1B, the op amp The output terminal of the device U2A is connected with the positive pole of the diode D3, the negative pole of the diode D3 is connected with the positive pole of the diode D12, the negative pole of the diode D12 is respectively connected with one end of the resistor R4, the negative pole of the diode D13, the positive pole of the diode D13 is connected with the negative pole of the diode D2 The anode of the diode D2 is connected to the output terminal of the operational amplifier U3A, and the other end of the resistor R4 is respectively connected to the other end of the variable resistor R6, the gnd pin of the pressure sensor U1A, and the gnd pin of the pressure sensor U1B. land.

进一步地，所述第二检测电路包括监测器与控制器，所述监测器利用热敏电阻R10来检测压缩机管道内的温度信号，并将温度信号进行运算后输出差值信号，并与第一检测电路输出的第一高电平进行或运算后产生运算信号，并利用运算信号将控制器导通，所述控制器则将差值信号进行判断，并根据判断的结果产生提醒信号与紧急信号，从而输出提醒信号与紧急信号至监控中心。Further, the second detection circuit includes a monitor and a controller. The monitor uses the thermistor R10 to detect the temperature signal in the pipeline of the compressor, and calculates the temperature signal to output a difference signal, which is compared with the first The first high level output by a detection circuit is ORed to generate an operation signal, and the controller is turned on by using the operation signal, and the controller judges the difference signal, and generates a reminder signal and an emergency signal according to the result of the judgment. Signal, so as to output reminder signal and emergency signal to the monitoring center.

进一步地，所述监测器包括稳压管D6，稳压管D6的正极分别连接热敏电阻R10的一端、第一检测电路中的电阻R3的一端、运放器U3A的反相端，稳压管D6的负极分别连接电阻R9的一端、运放器U4B的反相端、电阻R20的一端，电阻R9的另一端分别连接电容C3的一端、运放器U4B的同相端、电阻R15的一端，运放器U4B的输出端分别连接二极管D1的正极、电阻R20的另一端、晶闸管Q6的阳极，二极管D1的负极与稳压管D7的正极相连接，稳压管D7的负极分别连接晶闸管Q6的控制极、电容C4的一端、电阻R8的一端、二极管D4的负极，二极管D4的正极分别连接第一检测电路中的二极管D13的正极、二极管D12的正极、电阻R4的一端，电容C4的另一端分别连接电阻R8的另一端、热敏电阻R10的另一端、电容C3的另一端、电阻R15的另一端、第一检测电路中的电阻R4的另一端并连接地。Further, the monitor includes a voltage regulator tube D6, the anode of the voltage regulator tube D6 is respectively connected to one end of the thermistor R10, one end of the resistor R3 in the first detection circuit, and the inverting terminal of the operational amplifier U3A, and the voltage regulator The negative pole of the tube D6 is respectively connected to one end of the resistor R9, the inverting end of the operational amplifier U4B, and one end of the resistor R20, and the other end of the resistor R9 is respectively connected to one end of the capacitor C3, the non-inverting end of the operational amplifier U4B, and one end of the resistor R15. The output end of the operational amplifier U4B is respectively connected to the anode of the diode D1, the other end of the resistor R20, and the anode of the thyristor Q6, the cathode of the diode D1 is connected to the anode of the regulator D7, and the cathode of the regulator D7 is respectively connected to the thyristor Q6. The control electrode, one end of the capacitor C4, one end of the resistor R8, the cathode of the diode D4, and the anode of the diode D4 are respectively connected to the anode of the diode D13, the anode of the diode D12, one end of the resistor R4, and the other end of the capacitor C4 in the first detection circuit. Respectively connect the other end of the resistor R8, the other end of the thermistor R10, the other end of the capacitor C3, the other end of the resistor R15, the other end of the resistor R4 in the first detection circuit and connect to the ground.

进一步地，所述控制器包括二极管D8，二极管D8的正极分别连接电阻R11的一端、三极管Q1的基极、晶闸管Q3的阴极、与门U4A的5引脚、U6A的输入端、监测器中的晶闸管Q6的阴极，二极管D8的负极分别连接吹风管、电阻R7的一端，电阻R7的另一端分别连接电容C1的一端、晶闸管Q3的控制极，三极管Q1的集电极分别连接电阻R14的一端、电阻R13的一端、电阻R12的一端，电阻R12的另一端与开关S1的一端相连接，电阻R13的另一端与开关S2的一端相连接，开关S2的另一端与运放器U5B的同相端相连接，运放器U5B的反相端与电阻R17的一端相连接，运放器U5B的输出端分别连接电阻R18的一端、电阻R17的另一端、双向稳压管D5的一端、监控中心，电阻R18的另一端分别连接电阻R19的一端、三极管Q2的发射极，三极管Q2的基极分别连接电阻R16的一端、电容C5的一端，电容C5的另一端分别连接电阻R16的一端、二极管D9的负极、开关S1的另一端，继电器K1的一端，三极管Q2的集电极分别连接三极管Q1的发射极、电阻R11的另一端、第一检测电路中的电阻R3的另一端并连接正极性电源VCC，与门U4A的7引脚分别连接监测器中的二极管D4的负极、第一检测电路中的电阻R4的一端、二极管D13的负极、二极管D12的负极，与门U4A的输出端和非门U6A的输入端相连接，非门U6A的输出端与继电器K2的一端相连接，电阻R14的另一端分别连接电容C1的另一端、继电器K1的另一端、继电器K2的另一端、电阻R19的另一端、双向稳压管D5的另一端、监测器中的电阻R8的另一端、第一检测电路中的电阻R4的另一端并连接地。Further, the controller includes a diode D8, the anode of the diode D8 is respectively connected to one end of the resistor R11, the base of the triode Q1, the cathode of the thyristor Q3, the 5 pin of the AND gate U4A, the input end of U6A, and the The cathode of the thyristor Q6 and the cathode of the diode D8 are respectively connected to the hair pipe and one end of the resistor R7, and the other end of the resistor R7 is respectively connected to one end of the capacitor C1 and the control electrode of the thyristor Q3, and the collector of the triode Q1 is respectively connected to one end of the resistor R14, the resistor One end of R13, one end of resistor R12, the other end of resistor R12 is connected to one end of switch S1, the other end of resistor R13 is connected to one end of switch S2, the other end of switch S2 is connected to the same phase end of operational amplifier U5B , the inverting end of the op amp U5B is connected to one end of the resistor R17, the output end of the op amp U5B is connected to one end of the resistor R18, the other end of the resistor R17, one end of the bidirectional regulator D5, the monitoring center, and the resistor R18 The other end of the resistor R19 is respectively connected to the emitter of the transistor Q2, the base of the transistor Q2 is respectively connected to one end of the resistor R16, one end of the capacitor C5, and the other end of the capacitor C5 is respectively connected to one end of the resistor R16, the negative electrode of the diode D9, The other end of the switch S1, one end of the relay K1, and the collector of the transistor Q2 are respectively connected to the emitter of the transistor Q1, the other end of the resistor R11, the other end of the resistor R3 in the first detection circuit and connected to the positive polarity power supply VCC, and the AND gate Pin 7 of U4A is respectively connected to the negative pole of the diode D4 in the monitor, one end of the resistor R4 in the first detection circuit, the negative pole of the diode D13, the negative pole of the diode D12, the output terminal of the AND gate U4A and the input terminal of the NOT gate U6A The output end of the NOT gate U6A is connected to one end of the relay K2, and the other end of the resistor R14 is respectively connected to the other end of the capacitor C1, the other end of the relay K1, the other end of the relay K2, and the other end of the resistor R19. The other end of the pressure tube D5, the other end of the resistor R8 in the monitor, and the other end of the resistor R4 in the first detection circuit are connected to the ground.

本发明实现了如下有益效果：The present invention has realized following beneficial effect:

通过设置第一检测电路对移动基站内的空调的压缩机内的压力进行检测，同时设置第二检测电路来对压缩机管道的温度信号进行检测，并对第一检测电路产生的第一高电平与第二检测电路产生的差值信号进行或运算，并启动对差值信号的判断，从而判断出空调内的膨胀阀所处的状态，并相应的启动吹风管从而检测出膨胀阀的脏堵程度，并进行处理，从而保证移动基站内空调的正常工作，保证移动基站的工作环境保持恒定，从而使得移动基站能进行信心传递工作，有效的避免了现有技术针对移动基站内的膨胀阀的检测方式还是对移动基站产生影响的问题出现。The pressure in the compressor of the air conditioner in the mobile base station is detected by setting the first detection circuit, and at the same time, the second detection circuit is set to detect the temperature signal of the compressor pipeline, and the first high voltage generated by the first detection circuit is detected. Perform OR operation with the difference signal generated by the second detection circuit, and start the judgment of the difference signal, so as to judge the state of the expansion valve in the air conditioner, and correspondingly start the blowing pipe to detect the dirtiness of the expansion valve Congestion degree, and processing, so as to ensure the normal operation of the air conditioner in the mobile base station, to ensure that the working environment of the mobile base station remains constant, so that the mobile base station can carry out confidence transfer work, effectively avoiding the expansion valve in the mobile base station in the prior art The detection method still affects the mobile base station.

附图说明Description of drawings

图1为本发明的第一检测电路的原理图。FIG. 1 is a schematic diagram of a first detection circuit of the present invention.

图2为本发明的第二检测电路的原理图。FIG. 2 is a schematic diagram of the second detection circuit of the present invention.

具体实施方式Detailed ways

为有关本发明的前述及其他技术内容、特点与功效，在以下配合参考附图1-2对实施例的详细说明中，将可清楚的呈现。以下实施例中所提到的结构内容，均是以说明书附图为参考。For the foregoing and other technical contents, features and effects of the present invention, they will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings 1-2. The structural contents mentioned in the following embodiments are all based on the accompanying drawings of the description.

下面将参照附图描述本发明的各示例性的实施例。Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

一种用于移动基站的检测电路，应用于移动基站内空调的压缩机内，所述检测电路包括第一检测电路与第二检测电路，所述第一检测电路利用压力传感器U1A和压力传感器U1B检测移动基站内压缩机高压侧与低压侧的压力信号，并分别进行比较，从而输出第一高电平至第二检测电路，所述第二检测电路利用热敏电阻R10来检测压缩机管道内的温度信号，并将温度信号进行运算后输出差值信号，并利用差值信号与第一检测电路输出的第一高电平进行运算和判断后产生提醒信号与报警信号，并将提醒信号与报警信号传输至监控中心。A detection circuit for a mobile base station, applied in a compressor of an air conditioner in a mobile base station, the detection circuit includes a first detection circuit and a second detection circuit, and the first detection circuit uses a pressure sensor U1A and a pressure sensor U1B Detect the pressure signals of the high-pressure side and low-pressure side of the compressor in the mobile base station, and compare them respectively, so as to output the first high level to the second detection circuit. The second detection circuit uses the thermistor R10 to detect the pressure signal in the compressor pipeline. The temperature signal, and the temperature signal is calculated to output a difference signal, and the difference signal is used to calculate and judge the first high level output by the first detection circuit to generate a reminder signal and an alarm signal, and the reminder signal and the alarm signal are combined. The alarm signal is transmitted to the monitoring center.

所述第一检测电路包括电阻R1，电阻R1的一端与压力传感器U1A的out引脚相连接，电阻R1的另一端分别与运放器U3A的同相端相连接，运放器U3A的反相端分别连接电阻R3的一端、电阻R5的一端，电阻R3的另一端分别连接压力传感器U1A的vcc引脚、压力传感器U1B的vcc引脚并连接正极性电源VCC，电阻R5的另一端分别连接运放器U2A的反相端、可变电阻R6的一端，运放器U2A的同相端与电阻R2的一端相连接，电阻R2的另一端与压力传感器U1B的out引脚相连接，运放器U2A的输出端与二极管D3的正极相连接，二极管D3的负极与二极管D12的正极相连接，二极管D12的负极分别连接电阻R4的一端、二极管D13的负极，二极管D13的正极与二极管D2的负极相连接，二极管D2的正极与运放器U3A的输出端相连接，电阻R4的另一端分别连接可变电阻R6的另一端、压力传感器U1A的gnd引脚、压力传感器U1B的gnd引脚并连接地；The first detection circuit includes a resistor R1, one end of the resistor R1 is connected to the out pin of the pressure sensor U1A, the other end of the resistor R1 is respectively connected to the non-inverting terminal of the operational amplifier U3A, and the inverting terminal of the operational amplifier U3A Connect one end of resistor R3 and one end of resistor R5 respectively, the other end of resistor R3 is respectively connected to the vcc pin of pressure sensor U1A, the vcc pin of pressure sensor U1B and the positive polarity power supply VCC, and the other end of resistor R5 is respectively connected to the operational amplifier The inverting end of the device U2A, one end of the variable resistor R6, the non-inverting end of the op amp U2A is connected to one end of the resistor R2, the other end of the resistor R2 is connected to the out pin of the pressure sensor U1B, the op amp U2A The output terminal is connected to the positive pole of the diode D3, the negative pole of the diode D3 is connected to the positive pole of the diode D12, the negative pole of the diode D12 is respectively connected to one end of the resistor R4, and the negative pole of the diode D13, and the positive pole of the diode D13 is connected to the negative pole of the diode D2, The anode of the diode D2 is connected to the output terminal of the operational amplifier U3A, and the other end of the resistor R4 is respectively connected to the other end of the variable resistor R6, the gnd pin of the pressure sensor U1A, the gnd pin of the pressure sensor U1B and ground;

所述第一检测电路利用压力传感器U1A和压力传感器U1B检测移动基站内压缩机高压侧与低压侧的压力信号，其中压力传感器U1A和压力传感器U1B都可采用型号类似为CPS171的压力传感器进行使用，并将压力传感器U1A检测到的压力信号作为第一压力信号，将压力传感器U1B检测到的压力信号作为第二压力信号，电阻R1将第一压力信号传输至运放器U3A上与电阻R3和电阻R5、可变电阻R6分压提供的压力上限信号进行比较，当运放器U3A将二极管D2导通时，表明此时压缩机内高压侧的压力已经高于上限值，电阻R2将第二压力信号传输至运放器U2A上与电阻R3、电阻R5和可变电阻R6分压提供的压力下限信号进行比较，当运放器U2A将二极管D3导通时，表明此时压缩机内低压侧的压力已经低于下限值，当二极管D2或二极管D3两者之一或者两者都导通时，二极管D13、二极管D12、电阻R4组成的第一或门电路导通，表明此时膨胀阀出现了异常，此时第一或门电路输出第一高电平至第二检测电路上。The first detection circuit uses the pressure sensor U1A and the pressure sensor U1B to detect the pressure signals of the high pressure side and the low pressure side of the compressor in the mobile base station, wherein both the pressure sensor U1A and the pressure sensor U1B can use a pressure sensor similar to CPS171 for use, The pressure signal detected by the pressure sensor U1A is used as the first pressure signal, and the pressure signal detected by the pressure sensor U1B is used as the second pressure signal. The resistor R1 transmits the first pressure signal to the op amp U3A to communicate with the resistor R3 and the resistor R3. R5 and the pressure upper limit signal provided by the variable resistor R6 are compared. When the operational amplifier U3A turns on the diode D2, it indicates that the pressure on the high pressure side of the compressor is higher than the upper limit, and the resistor R2 will second The pressure signal is transmitted to the op amp U2A and compared with the pressure lower limit signal provided by the resistor R3, resistor R5 and variable resistor R6. When the op amp U2A conducts the diode D3, it indicates that the low pressure side of the compressor is at this time. The pressure has been lower than the lower limit, when one of the diode D2 or the diode D3 or both are turned on, the first OR circuit composed of the diode D13, the diode D12, and the resistor R4 is turned on, indicating that the expansion valve is at this time When an abnormality occurs, the first OR gate circuit outputs a first high level to the second detection circuit at this time.

所述监测器包括稳压管D6，稳压管D6的正极分别连接热敏电阻R10的一端、第一检测电路中的电阻R3的一端、运放器U3A的反相端，稳压管D6的负极分别连接电阻R9的一端、运放器U4B的反相端、电阻R20的一端，电阻R9的另一端分别连接电容C3的一端、运放器U4B的同相端、电阻R15的一端，运放器U4B的输出端分别连接二极管D1的正极、电阻R20的另一端、晶闸管Q6的阳极，二极管D1的负极与稳压管D7的正极相连接，稳压管D7的负极分别连接晶闸管Q6的控制极、电容C4的一端、电阻R8的一端、二极管D4的负极，二极管D4的正极分别连接第一检测电路中的二极管D13的正极、二极管D12的正极、电阻R4的一端，电容C4的另一端分别连接电阻R8的另一端、热敏电阻R10的另一端、电容C3的另一端、电阻R15的另一端、第一检测电路中的电阻R4的另一端并连接地；The monitor includes a voltage regulator tube D6, the positive pole of the voltage regulator tube D6 is respectively connected to one end of the thermistor R10, one end of the resistor R3 in the first detection circuit, the inverting terminal of the operational amplifier U3A, and the terminal of the voltage regulator tube D6. The negative pole is respectively connected to one end of the resistor R9, the inverting end of the operational amplifier U4B, and one end of the resistor R20, and the other end of the resistor R9 is respectively connected to one end of the capacitor C3, the non-inverting end of the operational amplifier U4B, and one end of the resistor R15. The output terminal of U4B is respectively connected to the anode of the diode D1, the other end of the resistor R20, and the anode of the thyristor Q6, the cathode of the diode D1 is connected to the anode of the voltage regulator D7, and the cathode of the voltage regulator D7 is respectively connected to the control electrode of the thyristor Q6, One end of the capacitor C4, one end of the resistor R8, the cathode of the diode D4, and the anode of the diode D4 are respectively connected to the anode of the diode D13 in the first detection circuit, the anode of the diode D12, and one end of the resistor R4, and the other end of the capacitor C4 is respectively connected to the resistor The other end of R8, the other end of the thermistor R10, the other end of the capacitor C3, the other end of the resistor R15, and the other end of the resistor R4 in the first detection circuit are connected to the ground;

所述控制器包括二极管D8，二极管D8的正极分别连接电阻R11的一端、三极管Q1的基极、晶闸管Q3的阴极、与门U4A的5引脚、U6A的输入端、监测器中的晶闸管Q6的阴极，二极管D8的负极分别连接吹风管、电阻R7的一端，电阻R7的另一端分别连接电容C1的一端、晶闸管Q3的控制极，三极管Q1的集电极分别连接电阻R14的一端、电阻R13的一端、电阻R12的一端，电阻R12的另一端与开关S1的一端相连接，电阻R13的另一端与开关S2的一端相连接，开关S2的另一端与运放器U5B的同相端相连接，运放器U5B的反相端与电阻R17的一端相连接，运放器U5B的输出端分别连接电阻R18的一端、电阻R17的另一端、双向稳压管D5的一端、监控中心，电阻R18的另一端分别连接电阻R19的一端、三极管Q2的发射极，三极管Q2的基极分别连接电阻R16的一端、电容C5的一端，电容C5的另一端分别连接电阻R16的一端、二极管D9的负极、开关S1的另一端，继电器K1的一端，三极管Q2的集电极分别连接三极管Q1的发射极、电阻R11的另一端、第一检测电路中的电阻R3的另一端并连接正极性电源VCC，与门U4A的7引脚分别连接监测器中的二极管D4的负极、第一检测电路中的电阻R4的一端、二极管D13的负极、二极管D12的负极，与门U4A的输出端和非门U6A的输入端相连接，非门U6A的输出端与继电器K2的一端相连接，电阻R14的另一端分别连接电容C1的另一端、继电器K1的另一端、继电器K2的另一端、电阻R19的另一端、双向稳压管D5的另一端、监测器中的电阻R8的另一端、第一检测电路中的电阻R4的另一端并连接地。The controller includes a diode D8, the anode of the diode D8 is respectively connected to one end of the resistor R11, the base of the triode Q1, the cathode of the thyristor Q3, the 5 pin of the AND gate U4A, the input end of U6A, and the thyristor Q6 in the monitor. The cathode and the cathode of the diode D8 are respectively connected to the hair pipe and one end of the resistor R7, and the other end of the resistor R7 is respectively connected to one end of the capacitor C1 and the control electrode of the thyristor Q3, and the collector of the triode Q1 is respectively connected to one end of the resistor R14 and one end of the resistor R13 1. One end of the resistor R12, the other end of the resistor R12 is connected to one end of the switch S1, the other end of the resistor R13 is connected to one end of the switch S2, the other end of the switch S2 is connected to the same phase end of the op amp U5B, the op amp The inverting end of the op amp U5B is connected to one end of the resistor R17, and the output end of the operational amplifier U5B is respectively connected to one end of the resistor R18, the other end of the resistor R17, one end of the bidirectional regulator D5, the monitoring center, and the other end of the resistor R18 Connect one end of the resistor R19, the emitter of the transistor Q2, the base of the transistor Q2 to one end of the resistor R16, one end of the capacitor C5, and the other end of the capacitor C5 to one end of the resistor R16, the cathode of the diode D9, and the switch S1. The other end, one end of the relay K1, and the collector of the triode Q2 are respectively connected to the emitter of the triode Q1, the other end of the resistor R11, the other end of the resistor R3 in the first detection circuit and connected to the positive polarity power supply VCC, and the gate U4A 7 The pins are respectively connected to the negative pole of the diode D4 in the monitor, one end of the resistor R4 in the first detection circuit, the negative pole of the diode D13, and the negative pole of the diode D12, and the output terminal of the AND gate U4A is connected with the input terminal of the NOT gate U6A, The output end of the NOT gate U6A is connected to one end of the relay K2, and the other end of the resistor R14 is respectively connected to the other end of the capacitor C1, the other end of the relay K1, the other end of the relay K2, the other end of the resistor R19, and the bidirectional regulator D5 The other end of the monitor, the other end of the resistor R8 in the monitor, and the other end of the resistor R4 in the first detection circuit are connected to the ground.

所述第二检测电路包括监测器与控制器，所述监测器利用热敏电阻R10来检测移动基站内空调的压缩机管道的温度信号，热敏电阻R10、电阻R3输出的温度信号经稳压管D6输出的温度信号分两路传输至运放器U4B上，一路直接传输至运放器U4B的反相端，另一路经电阻R9、电容C3传输至运放器U4B的同相端上，运放器U4B将两路温度信号进行减法运算，从而输出差值信号，当差值信号不能将二极管D1导通时，表明此时压缩机内的管道还未出现温度下降的现象，而当差值信号将二极管D1导通时，表明此时压缩机内的管道已经出现温度下降的现象，即此时膨胀阀出现了脏堵现象，此而二极管D4接收的则是第一检测电路输出的第一高电平，二极管D7、二极管D4、电阻R8组成的第二导通电路将第一高电平或差值信号进行或运算，第二导通电路则输出运算信号，运算信号则通过电容C4将晶闸管Q6导通，即将控制器导通，此时晶闸管Q6则将差值信号进行判断，当差值信号将三极管Q1导通时，（即此时差值信号为低电平，而第一高电平存在）则表明此时是膨胀阀损坏，此时三极管Q1通过开关S1、电阻R12与电阻R13分别输出第二高电平与提醒信号，同时与门U4A和非门U6A同时作用令继电器K2导通，令开关S1断开，第二高电平无法输出至监控中心而提醒信号则能够输出至监控中心，提醒监控中心需对膨胀阀立即进行维修以保证移动基站的正常信息传递，其中开关S1是继电器K2的引脚开关，开关S2是继电器K1的引脚开关；而当差值信号将稳压管D8导通时，二极管D8令吹风管工作，则表明此时膨胀阀脏堵较为严重，此时将吹风管导通，吹风管则将膨胀阀上的脏堵吹掉，使得膨胀阀可以正常工作，所述膨胀阀则为现有技术中利用高压氮气与其他方法进行结合所形成的，可以将膨胀阀上的脏堵吹掉，差值信号则利用电阻R7、电容C1延时将晶闸管Q3导通，晶闸管Q3则将差值信号传输至三极管Q1、二极管D9和与门U4A、非门U6A上进行判断，若是差值信号此时将三极管Q1导通，即此时的差值信号经吹风管作用后为低电平，也表明此时通过吹风管的作用膨胀阀此时已经可以正常作用且管道的温度信号也已经恢复正常，同时晶闸管Q3通过与门U4A、非门U6A的作用将继电器K2导通，即与门U4A将差值信号与第一高电平进行与运算后，再利用非门U6A将输出的结果进行反转，即当吹风管作用后的差值信号为低电平时，非门U6A输出高电平，继电器K2导通，继电器K2则令开关S1断开，而开关S2处于闭合状态，此时三极管Q1通过电阻R13输出提醒信号，提醒信号经运放器U5B输出至监控中心，提醒监控中心需对膨胀阀立即进行维修以保证移动基站的正常信息传递；而差值信号为将二极管D9导通时，即表明此时膨胀阀脏堵十分严重，吹风管无法起到作用，非门U6A输出高电平，继电器K2导通，继电器K2则令开关S1断开，而开关S2处于闭合状态继电器K2不导通，开关S1维持闭合状态，此时二极管D9输出紧急信号，紧急信号经电阻R16、电容C5、三极管Q2快速传输至监控中心，提醒监控中心需对膨胀阀以及压缩机其他部分立即进行除脏堵处理以保证移动基站的正常信息传递；并利用双向稳压管D5抑制提醒信号、紧急信号引起的监控中心的浪涌现象。The second detection circuit includes a monitor and a controller. The monitor uses the thermistor R10 to detect the temperature signal of the compressor pipeline of the air conditioner in the mobile base station. The temperature signal output by the thermistor R10 and the resistor R3 is stabilized The temperature signal output by the tube D6 is transmitted to the operational amplifier U4B in two ways, one is directly transmitted to the inverting terminal of the operational amplifier U4B, and the other is transmitted to the non-inverting terminal of the operational amplifier U4B through the resistor R9 and the capacitor C3. Amplifier U4B subtracts the two temperature signals to output a difference signal. When the difference signal fails to conduct the diode D1, it indicates that the temperature drop of the pipeline in the compressor has not yet occurred. When the signal turns on the diode D1, it indicates that the temperature of the pipeline in the compressor has dropped at this time, that is, the expansion valve is dirty and blocked at this time, and what the diode D4 receives is the first signal output by the first detection circuit. High level, the second conduction circuit composed of diode D7, diode D4, and resistor R8 performs OR operation on the first high level or difference signal, the second conduction circuit outputs the operation signal, and the operation signal is passed through the capacitor C4 The thyristor Q6 is turned on, and the controller is about to be turned on. At this time, the thyristor Q6 judges the difference signal. When the difference signal turns on the transistor Q1, (that is, the difference signal is low at this time, and the first high Level exists) indicates that the expansion valve is damaged at this time, at this time, the triode Q1 outputs the second high level and the reminder signal respectively through the switch S1, the resistor R12 and the resistor R13, and at the same time, the AND gate U4A and the NOT gate U6A act simultaneously to make the relay K2 conduction, so that the switch S1 is disconnected, the second high level cannot be output to the monitoring center and the reminder signal can be output to the monitoring center, reminding the monitoring center that the expansion valve needs to be repaired immediately to ensure the normal information transmission of the mobile base station. S1 is the pin switch of relay K2, and switch S2 is the pin switch of relay K1; when the difference signal turns on the regulator tube D8, the diode D8 makes the blower work, which indicates that the expansion valve is seriously blocked at this time. At this time, the blowing pipe is turned on, and the blowing pipe blows off the dirty plug on the expansion valve, so that the expansion valve can work normally. The expansion valve is formed by combining high-pressure nitrogen with other methods in the prior art. , the dirty plug on the expansion valve can be blown off, and the difference signal uses the resistor R7 and the capacitor C1 to delay the conduction of the thyristor Q3, and the thyristor Q3 transmits the difference signal to the transistor Q1, the diode D9 and the AND gate U4A, the N Judgment is made on the gate U6A, if the difference signal turns on the triode Q1 at this time, that is, the difference signal at this time is low level after the action of the blower, which also indicates that the expansion valve can be activated by the action of the blower at this time. It works normally and the temperature signal of the pipeline has also returned to normal. At the same time, the thyristor Q3 conducts the relay K2 through the action of the AND gate U4A and the NOT gate U6A, that is, after the AND gate U4A performs the AND operation on the difference signal and the first high level, Then use the NOT gate U6A to reverse the output result, that is, when the difference signal after the action of the blower is low level, the NOT gate U6A outputs a high level, the relay K2 is turned on, and the relay K2 turns off the switch S1, While the switch S2 is in the closed state, at this time, the triode Q1 outputs a reminder signal through the resistor R13, and the reminder signal is output to the monitoring center through the operational amplifier U5B, reminding the monitoring center that the expansion valve needs to be repaired immediately to ensure the normal information transmission of the mobile base station; and When the difference signal is to turn on the diode D9, it means that the expansion valve is very dirty and blocked at this time, and the blower cannot play a role. The inverter U6A outputs a high level, the relay K2 is turned on, and the relay K2 turns off the switch S1 , and the switch S2 is in the closed state, the relay K2 is not conducting, and the switch S1 remains in the closed state. At this time, the diode D9 outputs an emergency signal, and the emergency signal is quickly transmitted to the monitoring center through the resistor R16, the capacitor C5, and the transistor Q2, reminding the monitoring center that the expansion The valve and other parts of the compressor are immediately cleaned of dirt and blockage to ensure the normal information transmission of the mobile base station; and the two-way voltage regulator D5 is used to suppress the surge phenomenon of the monitoring center caused by reminder signals and emergency signals.

本发明在进行使用的时候，所述第一检测电路利用压力传感器U1A和压力传感器U1B检测移动基站内压缩机高压侧与低压侧的压力信号，将压力传感器U1A检测到的压力信号作为第一压力信号，将压力传感器U1B检测到的压力信号作为第二压力信号，电阻R1将第一压力信号传输至运放器U3A上与电阻R3和电阻R5、可变电阻R6分压提供的压力上限信号进行比较，当运放器U3A将二极管D2导通时，表明此时压缩机内高压侧的压力已经高于上限值，电阻R2将第二压力信号传输至运放器U2A上与电阻R3、电阻R5和可变电阻R6分压提供的压力下限信号进行比较，当运放器U2A将二极管D3导通时，表明此时压缩机内低压侧的压力已经低于下限值，当二极管D2或二极管D3两者之一或者两者都导通时，二极管D13、二极管D12、电阻R4组成的第一或门电路导通，表明此时膨胀阀出现了异常，此时第一或门电路输出第一高电平至第二检测电路上，所述第二检测电路包括监测器与控制器，所述监测器利用热敏电阻R10来检测移动基站内空调的压缩机管道的温度信号，热敏电阻R10、电阻R3输出的温度信号经稳压管D6输出的温度信号分两路传输至运放器U4B上，运放器U4B将两路温度信号进行减法运算，从而输出差值信号，当差值信号将二极管D1导通时，二极管D4接收的则是第一检测电路输出的第一高电平，二极管D7、二极管D4、电阻R8组成的第二导通电路将第一高电平或差值信号进行或运算，第二导通电路则输出运算信号，运算信号则通过电容C4将晶闸管Q6导通，即将控制器导通，此时晶闸管Q6则将差值信号进行判断，当差值信号将三极管Q1导通时，三极管Q1 通过开关S1、电阻R12与电阻R13分别输出第二高电平与提醒信号，同时与门U4A和非门U6A同时作用令继电器K2导通，令开关S1断开，第二高电平无法输出至监控中心而提醒信号则能够输出至监控中心，而当差值信号将稳压管D8导通时，二极管D8令吹风管工作，差值信号则利用电阻R7、电容C1延时将晶闸管Q3导通，晶闸管Q3则将差值信号传输至三极管Q1、二极管D9和与门U4A、非门U6A上进行判断，若是差值信号此时将三极管Q1导通，同时晶闸管Q3通过与门U4A、非门U6A的作用将继电器K2导通，即当吹风管作用后的差值信号为低电平时，非门U6A输出高电平，继电器K2导通，继电器K2则令开关S1断开，而开关S2处于闭合状态，此时三极管Q1通过电阻R13输出提醒信号，提醒信号经运放器U5B输出至监控中心，提醒监控中心需对膨胀阀立即进行维修以保证移动基站的正常信息传递；而差值信号为将二极管D9导通时，即表明此时膨胀阀脏堵十分严重，吹风管无法起到作用，非门U6A输出高电平，继电器K2导通，继电器K2则令开关S1断开，而开关S2处于闭合状态继电器K2不导通，开关S1维持闭合状态，此时二极管D9输出紧急信号，紧急信号经电阻R16、电容C5、三极管Q2快速传输至监控中心，提醒监控中心需对膨胀阀以及压缩机其他部分立即进行除脏堵处理以保证移动基站的正常信息传递；并利用双向稳压管D5抑制提醒信号、紧急信号引起的监控中心的浪涌现象。When the present invention is in use, the first detection circuit uses the pressure sensor U1A and the pressure sensor U1B to detect the pressure signals of the high pressure side and the low pressure side of the compressor in the mobile base station, and uses the pressure signal detected by the pressure sensor U1A as the first pressure Signal, the pressure signal detected by the pressure sensor U1B is used as the second pressure signal, and the resistor R1 transmits the first pressure signal to the op amp U3A to perform the pressure upper limit signal provided by the resistor R3, resistor R5, and variable resistor R6. In comparison, when the op amp U3A conducts the diode D2, it indicates that the pressure on the high pressure side of the compressor is higher than the upper limit value at this time, and the resistor R2 transmits the second pressure signal to the op amp U2A and communicates with the resistor R3 and the resistor R3. R5 is compared with the pressure lower limit signal provided by the variable resistor R6. When the operational amplifier U2A turns on the diode D3, it indicates that the pressure on the low-pressure side of the compressor is lower than the lower limit. When the diode D2 or the diode When one or both of D3 is turned on, the first OR circuit composed of diode D13, diode D12 and resistor R4 is turned on, indicating that the expansion valve is abnormal at this time, and the first OR circuit outputs the first High level to the second detection circuit, the second detection circuit includes a monitor and a controller, the monitor uses thermistor R10 to detect the temperature signal of the compressor pipeline of the air conditioner in the mobile base station, thermistor R10 , The temperature signal output by the resistor R3 is transmitted to the op amp U4B in two ways through the temperature signal output by the voltage regulator tube D6, and the op amp U4B subtracts the two temperature signals to output a difference signal. When the difference signal When the diode D1 is turned on, the diode D4 receives the first high level output from the first detection circuit, and the second conduction circuit composed of the diode D7, the diode D4, and the resistor R8 converts the first high level or the difference signal Perform OR operation, the second conduction circuit outputs the operation signal, and the operation signal turns on the thyristor Q6 through the capacitor C4, that is, the controller is turned on, at this time, the thyristor Q6 judges the difference signal, when the difference signal turns on the triode When Q1 is turned on, the triode Q1 outputs the second high level and the reminder signal respectively through the switch S1, the resistor R12 and the resistor R13. At the same time, the AND gate U4A and the NOT gate U6A act simultaneously to turn on the relay K2 and turn off the switch S1. The two high levels cannot be output to the monitoring center, but the reminder signal can be output to the monitoring center, and when the difference signal turns on the voltage regulator D8, the diode D8 makes the blower work, and the difference signal uses the resistor R7 and the capacitor C1 The thyristor Q3 is turned on after a delay, and the thyristor Q3 transmits the difference signal to the triode Q1, diode D9, AND gate U4A, and NOT gate U6A for judgment. The function of the AND gate U4A and the NOT gate U6A turns on the relay K2, that is, when the difference signal after the action of the blower is low level, the NOT gate U6A outputs a high level, the relay K2 is turned on, and the relay K2 makes the switch S1 off Open, and the switch S2 is in the closed state. At this time, the triode Q1 outputs a reminder signal through the resistor R13, and the reminder signal is output to the monitoring center through the operational amplifier U5B, reminding the monitoring center that the expansion valve needs to be repaired immediately to ensure the normal information transmission of the mobile base station ; When the difference signal is to turn on the diode D9, it means that the expansion valve is very dirty and blocked at this time, and the blower cannot play a role. The inverter U6A outputs a high level, the relay K2 is turned on, and the relay K2 makes the switch S1 disconnected, and the switch S2 is in the closed state, the relay K2 is not conducting, and the switch S1 remains in the closed state. At this time, the diode D9 outputs an emergency signal, and the emergency signal is quickly transmitted to the monitoring center through the resistor R16, the capacitor C5, and the transistor Q2, reminding the monitoring center to Immediately clean the expansion valve and other parts of the compressor to ensure the normal information transmission of the mobile base station; and use the two-way voltage regulator D5 to suppress the surge phenomenon in the monitoring center caused by reminder signals and emergency signals.

本发明实现了以下效果：The present invention has achieved following effect:

（1）通过设置第一检测电路对移动基站内的空调的压缩机内的压力进行检测，同时设置第二检测电路来对压缩机管道的温度信号进行检测，并对第一检测电路产生的第一高电平与第二检测电路产生的差值信号进行或运算，并启动对差值信号的判断，从而判断出空调内的膨胀阀所处的状态，并相应的启动吹风管从而检测出膨胀阀的脏堵程度，并进行处理，从而保证移动基站内空调的正常工作，保证移动基站的工作环境保持恒定，从而使得移动基站能进行信心传递工作，有效的避免了现有技术针对移动基站内的膨胀阀的检测方式还是对移动基站产生影响的问题出现；(1) The pressure in the compressor of the air conditioner in the mobile base station is detected by setting the first detection circuit, and the second detection circuit is set at the same time to detect the temperature signal of the compressor pipeline, and the first detection circuit generated by the first detection circuit A high level is ORed with the difference signal generated by the second detection circuit, and the judgment of the difference signal is started, thereby judging the state of the expansion valve in the air conditioner, and correspondingly starting the blowing pipe to detect the expansion The degree of dirtyness and blockage of the valve is processed, so as to ensure the normal operation of the air conditioner in the mobile base station, and ensure that the working environment of the mobile base station remains constant, so that the mobile base station can carry out confidence transfer work, effectively avoiding the existing technology for the mobile base station. The detection method of the expansion valve still affects the mobile base station;

（2）在第二检测电路中设置监测器与控制器，通过监测器来启动控制器，并实现以控制器对监测器中产生的差值信号进行判断，加之第一检测电路输出的第一高电平，从而准确的判断出膨胀阀的状态，并利用控制器产生提醒信号与紧急信号，利用提醒信号来表示膨胀阀故障，而利用紧急信号表示膨胀阀脏堵，从而使得监控中心能够将两信号区分开来，方便监控中心内工作人员的工作。(2) Install a monitor and a controller in the second detection circuit, start the controller through the monitor, and use the controller to judge the difference signal generated in the monitor, plus the first output of the first detection circuit High level, so as to accurately judge the state of the expansion valve, and use the controller to generate reminder signals and emergency signals, use the reminder signal to indicate the failure of the expansion valve, and use the emergency signal to indicate that the expansion valve is dirty, so that the monitoring center can The two signals are separated to facilitate the work of the staff in the monitoring center.

Claims (2)

1. The detection circuit for the mobile base station is characterized by comprising a first detection circuit and a second detection circuit, wherein the first detection circuit detects pressure signals of a high pressure side and a low pressure side of a compressor in the mobile base station by using a pressure sensor U1A and a pressure sensor U1B, respectively compares the pressure signals to output a first high level to the second detection circuit, and the second detection circuit detects a temperature signal in a compressor pipeline by using a thermistor R10, calculates the temperature signal to output a difference signal, calculates the difference signal by using the difference signal and the first high level output by the first detection circuit, and judges the difference signal to output a reminding signal and an emergency signal to a monitoring center;
the first detection circuit comprises a resistor R1, one end of the resistor R1 is connected with an out pin of the pressure sensor U1A, the other end of the resistor R1 is connected with an in-phase end of the operational amplifier U3A, the opposite end of the operational amplifier U3A is connected with one end of the resistor R3 and one end of the resistor R5, the other end of the resistor R3 is connected with a VCC pin of the pressure sensor U1A and a VCC pin of the pressure sensor U1B, the other end of the resistor R5 is connected with an opposite end of the operational amplifier U2A and one end of the variable resistor R6, the in-phase end of the operational amplifier U2A is connected with one end of the resistor R2, the other end of the resistor R2 is connected with an out pin of the pressure sensor U1B, the output end of the operational amplifier U2A is connected with the positive electrode of the diode D3, the negative electrode of the diode D3 is connected with the positive electrode of the diode D12, the negative electrode of the diode D12 is connected with one end of the resistor R4, the negative electrode of the diode D13 is connected with the negative electrode of the diode D13, the positive electrode of the diode D2 is connected with the positive end of the diode D2A is connected with the output pin of the pressure sensor U1B, and the other end of the variable resistor U1 is connected with the other end of the variable resistor U1B is connected with the ground;
the second detection circuit comprises a monitor and a controller, the monitor comprises a voltage stabilizing tube D6, the positive electrode of the voltage stabilizing tube D6 is respectively connected with one end of a thermistor R10, one end of a resistor R3 in the first detection circuit and the opposite end of an operational amplifier U3A, the negative electrode of the voltage stabilizing tube D6 is respectively connected with one end of a resistor R9, the opposite end of an operational amplifier U4B and one end of a resistor R20, the other end of the resistor R9 is respectively connected with one end of a capacitor C3, the same-phase end of the operational amplifier U4B and one end of a resistor R15, the output end of the operational amplifier U4B is respectively connected with the positive electrode of a diode D1, the other end of a resistor R20 and the anode of a thyristor Q6, the negative electrode of the diode D1 is respectively connected with the positive electrode of the voltage stabilizing tube D7, the negative electrode of the thyristor Q6 is respectively connected with one end of a thyristor Q6, one end of a capacitor C4, one end of a resistor R8 and the negative electrode of a diode D4, the positive electrode of the diode D4 is respectively connected with the positive electrode of a diode D13 in the first detection circuit, one end of the other end of the diode D4 is respectively connected with the positive electrode of the diode D12, the other end of the diode D4 is connected with the other end of the resistor C4, and the other end of the resistor R4 is connected with the other end of the resistor R4 is respectively, and the other end of the resistor R4 is connected with the other end of the resistor R3 and the other end of the resistor is respectively.
2. The detecting circuit for a mobile base station as claimed in claim 1, wherein the controller includes a diode D8, the anode of the diode D8 is connected with one end of a resistor R11, the base of a triode Q1, the cathode of a thyristor Q3, the 5 pin of an AND gate U4A, the input end of U6A, the cathode of a thyristor Q6 in the monitor, the cathode of the diode D8 is connected with a blowpipe and one end of a resistor R7, the other end of the resistor R7 is connected with one end of a capacitor C1 and the control electrode of the thyristor Q3, the collector of the triode Q1 is connected with one end of a resistor R14, one end of a resistor R13, one end of a resistor R12, the other end of the resistor R12 is connected with one end of a switch S1, the other end of the resistor R13 is connected with one end of a switch S2, the other end of the switch S2 is connected with the same phase end of an operational amplifier U5B, the inverting end of the operational amplifier U5B is connected with one end of a resistor R17, the output end of the operational amplifier U5B is respectively connected with one end of a resistor R18, the other end of a resistor R17, one end of a bidirectional voltage stabilizing tube D5 and a monitoring center, the other end of the resistor R18 is respectively connected with one end of a resistor R19 and the emitter of a triode Q2, the base electrode of the triode Q2 is respectively connected with one end of a resistor R16 and one end of a capacitor C5, the other end of the capacitor C5 is respectively connected with one end of a resistor R16, the cathode of a diode D9 and the other end of a switch S1, one end of a relay K1, the collector of the triode Q2 is respectively connected with the emitter of the triode Q1, the other end of the resistor R11 and the other end of the resistor R3 in a first detection circuit and is connected with a positive polarity power supply VCC, the pin 7 of an AND gate U4A is respectively connected with the cathode of a diode D4 in the monitor, one end of the resistor R4 in the first detection circuit, the cathode of a diode D13, the cathode of a diode D12 and the output end of the AND gate U4A and the input end of the NOT gate U6A, the output end of the NOT gate U6A is connected with one end of a relay K2, and the other end of a resistor R14 is respectively connected with the other end of a capacitor C1, the other end of the relay K2, the other end of a resistor R19, the other end of a bidirectional voltage stabilizing tube D5, the other end of a resistor R8 in a monitor and the other end of a resistor R4 in a first detection circuit and is connected with the ground.
CN202210177051.6A 2022-02-25 2022-02-25 Detection circuit for mobile base station Active CN114518192B (en)

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DE4015724A1 (en) * 1990-05-16 1991-11-21 Lectra Trading Ag Thyristor-controlled relay for overcurrent or overheat protection - is tripped by triac with two=stage thyristor firing circuit and reset by simple key switch
JPH0560404A (en) * 1990-01-31 1993-03-09 Eaton Corp Thermal expansion valve with electronic controller
CN206532172U (en) * 2017-03-09 2017-09-29 哈尔滨恒达交通设备技术开发有限公司 A kind of intelligent locomotive sensors are met an urgent need analogue means
CN210515623U (en) * 2019-12-17 2020-05-12 金荣 Alarm device for VSD negative pressure drainage
CN111817737A (en) * 2020-07-30 2020-10-23 黄河水利职业技术学院 A signal frequency control circuit of a radio communication system
CN212903783U (en) * 2020-09-19 2021-04-06 河南高中压阀门有限公司 Hydraulic electric control valve tightness detection device
CN113551709A (en) * 2021-07-28 2021-10-26 西南交通建设集团股份有限公司 A pavement compaction construction detection system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0560404A (en) * 1990-01-31 1993-03-09 Eaton Corp Thermal expansion valve with electronic controller
DE4015724A1 (en) * 1990-05-16 1991-11-21 Lectra Trading Ag Thyristor-controlled relay for overcurrent or overheat protection - is tripped by triac with two=stage thyristor firing circuit and reset by simple key switch
CN206532172U (en) * 2017-03-09 2017-09-29 哈尔滨恒达交通设备技术开发有限公司 A kind of intelligent locomotive sensors are met an urgent need analogue means
CN210515623U (en) * 2019-12-17 2020-05-12 金荣 Alarm device for VSD negative pressure drainage
CN111817737A (en) * 2020-07-30 2020-10-23 黄河水利职业技术学院 A signal frequency control circuit of a radio communication system
CN212903783U (en) * 2020-09-19 2021-04-06 河南高中压阀门有限公司 Hydraulic electric control valve tightness detection device
CN113551709A (en) * 2021-07-28 2021-10-26 西南交通建设集团股份有限公司 A pavement compaction construction detection system

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