CN112213586B - Equipment state detection method, system, equipment and medium - Google Patents
Equipment state detection method, system, equipment and medium Download PDFInfo
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- CN112213586B CN112213586B CN202011080521.4A CN202011080521A CN112213586B CN 112213586 B CN112213586 B CN 112213586B CN 202011080521 A CN202011080521 A CN 202011080521A CN 112213586 B CN112213586 B CN 112213586B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
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Abstract
The invention provides a method, a system, equipment and a medium for detecting equipment states, wherein the method comprises the following steps: acquiring bearing information of a device state, wherein the bearing information at least comprises one of the following information: testing voltage of the equipment end and equivalent resistance of the load; and determining the associated information of the equipment state through the bearing information, and judging the equipment state through the associated information. The load is added at the equipment end, the equivalent resistance value of the load is changed, the test voltages of the equipment ends are detected, the bearing information and the associated information of the equipment state are obtained, whether the resistance value of the cable is properly selected and whether the voltage of the equipment end can reach the rated voltage are judged according to the bearing information and the associated information, the problem that the resistance value of the cable is overlarge due to the fact that the cable is improperly selected in construction is avoided, the problem that the voltage of the equipment end is insufficient when the equipment is in a high-performance and high-power consumption state is also avoided, and abnormal equipment states such as power failure and restarting are.
Description
Technical Field
The present invention relates to detection technologies, and in particular, to a method, a system, a device, and a medium for detecting a device status.
Background
In the security protection field, the eminence often needs to be installed to equipment, consequently has the operating mode of long distance power supply often. When the cable is selected improperly in construction, the resistance value of the cable is too large, and further when the equipment is in a high-performance and high-power consumption state, the terminal voltage of the equipment is insufficient, so that power failure, restarting and abnormal equipment state are caused, a lot of inconvenience is brought to users, and the abnormal equipment state is not easy to directly perceive and warn.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a method, a system, a device and a medium for detecting a device status, which are used to solve the problem in the prior art that the device status is not easy to be directly perceived and early-warned.
To achieve the above and other related objects, the present invention provides a device status detecting method comprising:
acquiring bearing information of a device state, wherein the bearing information at least comprises one of the following information: testing voltage of the equipment end and equivalent resistance of the load;
and determining the associated information of the equipment state through the bearing information, and judging the equipment state through the associated information.
Optionally, the associated information of the device status at least includes one of the following: the actual voltage at the device end, the actual resistance of the cable.
Optionally, the step of obtaining the bearer information of the device status includes:
the method comprises the steps that a cable and an equipment end are connected in series, power supply voltage is input into the cable, and first test voltage of the equipment end is detected;
one end of a load is connected with the cable in series, the other end of the load is connected with the equipment end in series, power supply voltage is input into the cable, the equivalent resistance value of the load is changed, and second test voltage and third test voltage of the equipment end are respectively obtained, wherein when the equivalent resistance value of the load is the first equivalent resistance value, the voltage of the equipment end is the second test voltage, and when the equivalent resistance value of the load is the second equivalent resistance value, the voltage of the equipment end is the third test voltage.
Optionally, the step of determining the associated information of the device status through the bearer information, and determining the device status through the associated information includes:
and determining the actual resistance value of the cable according to the first test voltage, the second test voltage, the third test voltage, the first equivalent resistance value and the second equivalent resistance value.
Optionally, the mathematical expression of determining the actual resistance value of the cable through the first test voltage, the second test voltage, the third test voltage, the first equivalent resistance value and the second equivalent resistance value is as follows:
U1＝Ua+Ua*Rx/R1
U1＝Ub+Ub*Rx/R1+Ub*Rx/Rb
U1＝Uc+Uc*Rx/R1+Uc*Rx/Rc
wherein, U1For supply voltage, UaIs a first test voltage, UbIs a second test voltage, UcIs a third test voltage, RxIs the actual resistance of the cable, R1Is the actual resistance value, R, of the device sidebIs a first equivalent resistance value, RcIs the second equivalent resistance value.
Optionally, the step of determining the device status according to the associated information further includes:
the associated information also comprises the minimum voltage of the equipment end, the maximum current of the equipment end and the actual voltage of the equipment end;
determining the actual voltage of the equipment end through the actual resistance value of the cable, the minimum voltage of the equipment end and the maximum current of the equipment end, and judging that the equipment state is abnormal when the actual voltage is less than or equal to a voltage threshold value to give an alarm;
the mathematical expression for determining the actual voltage at the device end from the actual resistance value of the cable, the minimum voltage at the device end, and the maximum current at the device end is:
X＝(U1-Rx*Imax-Umin)≤Y
wherein X is the actual voltage, ImaxIs the maximum current of the equipment terminal, UminThe minimum voltage at the device end, Y is the voltage threshold.
Optionally, the step of determining the device status according to the associated information further includes:
and when the actual resistance value of the cable is larger than or equal to the resistance threshold value, judging that the equipment state is abnormal, and alarming.
A device status detection system comprising:
the power supply module is used for outputting power supply voltage;
the detection module comprises a load unit, an equipment end and a voltage detection unit, the voltage detection unit is used for detecting the test voltage of the equipment end, the detection module acquires the bearing information of the equipment state, determines the associated information of the equipment state according to the bearing information, and judges the equipment state according to the associated information, and the bearing information at least comprises one of the following: testing voltage of the equipment end and equivalent resistance of the load;
and one end of the cable is connected with the load unit in series, and the other end of the cable is connected with the power supply module in series.
Optionally, the method includes: the step of acquiring the bearing information of the equipment state by the detection module comprises the following steps:
the method comprises the steps that a cable and an equipment end are connected in series, power supply voltage is input into the cable, and first test voltage of the equipment end is detected;
one end of a load is connected with the cable in series, the other end of the load is connected with the equipment end in series, power supply voltage is input into the cable, the equivalent resistance value of the load is changed, and second test voltage and third test voltage of the equipment end are respectively obtained, wherein when the equivalent resistance value of the load is the first equivalent resistance value, the voltage of the equipment end is the second test voltage, and when the equivalent resistance value of the load is the second equivalent resistance value, the voltage of the equipment end is the third test voltage.
Optionally, the mathematical expression of determining the actual resistance value of the cable through the first test voltage, the second test voltage, the third test voltage, the first equivalent resistance value and the second equivalent resistance value is as follows:
U1＝Ua+Ua*Rx/R1
U1＝Ub+Ub*Rx/R1+Ub*Rx/Rb
U1＝Uc+Uc*Rx/R1+Uc*Rx/Rc
wherein, U1For supply voltage, UaIs a first test voltage, UbIs a second test voltage, UcIs a third test voltage, RxIs the actual resistance of the cable, R1Is the actual resistance value, R, of the device sidebIs a first equivalent resistance value, RcIs the second equivalent resistance value.
Optionally, the step of determining, by the detection module, the device state according to the associated information further includes:
the associated information also comprises the minimum voltage of the equipment end, the maximum current of the equipment end and the actual voltage of the equipment end;
determining the actual voltage of the equipment end through the actual resistance value of the cable, the minimum voltage of the equipment end and the maximum current of the equipment end, and judging that the equipment state is abnormal when the actual voltage is less than or equal to a voltage threshold value to give an alarm;
the mathematical expression for determining the actual voltage at the device end from the actual resistance value of the cable, the minimum voltage at the device end, and the maximum current at the device end is:
X＝(U1-Rx*Imax-Umin)≤Y
wherein X is the actual voltage, ImaxIs the maximum current of the equipment terminal, UminThe minimum voltage at the device end, Y is the voltage threshold.
A computer device, comprising: one or more processors; and one or more machine readable media having instructions stored thereon that, when executed by the one or more processors, cause the apparatus to perform one or more of the methods described.
One or more machine-readable media having instructions stored thereon, which when executed by one or more processors, cause an apparatus to perform one or more of the described methods.
As described above, the method, system, device and medium for detecting device status provided by the present invention have the following advantages:
the load is added to the equipment end, the equivalent resistance value of the load is changed, the test voltages of the equipment ends are detected, the bearing information and the associated information of the equipment state are obtained, whether the cable resistance value is properly selected and whether the voltage of the equipment end can reach the rated voltage are judged according to the bearing information and the associated information, the problem that the cable resistance value is too large due to improper cable selection in construction is avoided, the problem that the voltage of the equipment end is insufficient when the equipment is in a high-performance and high-power consumption state is also avoided, and abnormal equipment states such as power failure and restarting are prevented.
Drawings
Fig. 1 is a schematic diagram of an apparatus state detection method provided by the present invention.
Fig. 2 is a schematic diagram of a step of acquiring bearer information of a device status according to the present invention.
Fig. 3 is a schematic diagram of an apparatus state detection system provided in the present invention.
Fig. 4 is a schematic diagram of a hardware structure of a terminal device according to an embodiment.
Fig. 5 is a schematic diagram of a hardware structure of a terminal device according to another embodiment.
Description of the element reference numerals
1100 input device
1101 first processor
1102 output device
1103 first memory
1104 communication bus
1200 processing assembly
1201 second processor
1202 second memory
1203 communication assembly
1204 Power supply Assembly
1205 multimedia assembly
1206 Audio component
1207 input/output interface
1208 sensor assembly
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
The inventor finds that in the field of security protection, equipment often needs to be installed at a high position, so that a working condition of long-distance power supply exists, and in order to avoid abnormal equipment state during long-distance power supply, please refer to fig. 1, the invention provides an equipment state detection method which comprises the following steps:
s1: acquiring bearing information of a device state, wherein the bearing information at least comprises one of the following information: testing voltage of the equipment end and equivalent resistance of the load;
s2: and determining the associated information of the equipment state through the bearing information, and judging the equipment state through the associated information. The load is added to the equipment end, the equivalent resistance value of the load is changed, the test voltages of the equipment ends are detected, the bearing information and the associated information of the equipment state are obtained, whether the resistance value of the cable is proper or not and whether the voltage of the equipment end can reach the rated voltage or not are judged according to the bearing information and the associated information, the problem that the resistance value of the cable is too large due to improper cable selection in construction is avoided, the problem that the voltage of the equipment end is insufficient when the equipment is in a high-performance and high-power consumption state is also avoided, and abnormal equipment states such as power failure and restarting are prevented.
In some implementations, the device status detection may be achieved by detecting associated information of the device status, for example, the associated information of the device status includes at least one of: the actual voltage at the device end, the actual resistance of the cable.
Referring to fig. 2, the step of acquiring the bearer information of the device status includes:
s21: the method comprises the steps that a cable and an equipment end are connected in series, power supply voltage is input into the cable, and first test voltage of the equipment end is detected;
s22: one end of a load is connected with the cable in series, the other end of the load is connected with the equipment end in series, power supply voltage is input into the cable, the equivalent resistance value of the load is changed, and second test voltage and third test voltage of the equipment end are respectively obtained, wherein when the equivalent resistance value of the load is the first equivalent resistance value, the voltage of the equipment end is the second test voltage, and when the equivalent resistance value of the load is the second equivalent resistance value, the voltage of the equipment end is the third test voltage. The voltage of the equipment end under different equivalent resistance values is obtained by changing the equivalent resistance value of the load, so that the actual resistance value of the cable and the actual voltage of the equipment end can be solved, and the actual resistance value of the cable and the actual voltage of the equipment end are used as judgment indexes to judge whether the equipment state is abnormal or not.
In some implementation processes, the step of determining the associated information of the device status through the bearer information, and determining the device status through the associated information includes: and determining the actual resistance value of the cable according to the first test voltage, the second test voltage, the third test voltage, the first equivalent resistance value and the second equivalent resistance value. For example, the mathematical expression for determining the actual resistance value of the cable by the first test voltage, the second test voltage, the third test voltage, the first equivalent resistance value and the second equivalent resistance value is as follows:
U1＝Ua+Ua*Rx/R1
U1＝Ub+Ub*Rx/R1+Ub*Rx/Rb
U1＝Uc+Uc*Rx/R1+Uc*Rx/Rc
wherein, U1For supply voltage, UaIs the first testVoltage, UbIs a second test voltage, UcIs a third test voltage, RxIs the actual resistance of the cable, R1Is the actual resistance value, R, of the device sidebIs a first equivalent resistance value, RcFor example, the equivalent resistance of the load may be controlled by a variable resistor, and the actual resistance of the cable and the actual voltage of the device end may be determined by collecting the test voltage for multiple times.
Further, the step of determining the device status by the associated information further includes:
the associated information also comprises the minimum voltage of the equipment end, the maximum current of the equipment end and the actual voltage of the equipment end;
determining the actual voltage of the equipment end through the actual resistance value of the cable, the minimum voltage of the equipment end and the maximum current of the equipment end, and judging that the equipment state is abnormal when the actual voltage is less than or equal to a voltage threshold value to give an alarm;
the mathematical expression for determining the actual voltage at the device end from the actual resistance value of the cable, the minimum voltage at the device end, and the maximum current at the device end is:
X＝(U1-Rx*Imax-Umin)≤Y
wherein X is the actual voltage, ImaxIs the maximum current of the equipment terminal, UminThe minimum voltage at the device end, Y is the voltage threshold.
In some implementations, the step of determining the device status through the associated information further includes:
and when the actual resistance value of the cable is larger than or equal to the resistance threshold value, judging that the equipment state is abnormal, and alarming. The safety protection equipment is convenient to determine whether the cable is properly selected and whether the voltage of the equipment end can be in a rated voltage working state in the installation and construction process.
Referring to fig. 3, an apparatus status detecting system includes:
the power supply module is used for outputting power supply voltage;
the detection module comprises a load unit, an equipment end and a voltage detection unit, the voltage detection unit is used for detecting the test voltage of the equipment end, the detection module acquires the bearing information of the equipment state, determines the associated information of the equipment state according to the bearing information, and judges the equipment state according to the associated information, and the bearing information at least comprises one of the following: testing voltage of the equipment end and equivalent resistance of the load;
and one end of the cable is connected with the load unit in series, and the other end of the cable is connected with the power supply module in series. The load is added at the equipment end, the equivalent resistance value of the load is changed, the bearing information and the associated information of the equipment state are obtained, whether the cable resistance value is properly selected and whether the voltage of the equipment end can reach the rated voltage or not are judged according to the bearing information and the associated information, the cable resistance value is prevented from being too large due to improper cable selection in construction, the equipment end voltage is prevented from being insufficient when the equipment is in a high-performance and high-power consumption state, and abnormal equipment states such as power failure and restarting are prevented.
Optionally, the method includes: the step of acquiring the bearing information of the equipment state by the detection module comprises the following steps:
the method comprises the steps that a cable and an equipment end are connected in series, power supply voltage is input into the cable, and first test voltage of the equipment end is detected;
one end of a load is connected with the cable in series, the other end of the load is connected with the equipment end in series, power supply voltage is input into the cable, the equivalent resistance value of the load is changed, and second test voltage and third test voltage of the equipment end are respectively obtained, wherein when the equivalent resistance value of the load is the first equivalent resistance value, the voltage of the equipment end is the second test voltage, and when the equivalent resistance value of the load is the second equivalent resistance value, the voltage of the equipment end is the third test voltage.
Optionally, the mathematical expression of determining the actual resistance value of the cable through the first test voltage, the second test voltage, the third test voltage, the first equivalent resistance value and the second equivalent resistance value is as follows:
U1＝Ua+Ua*Rx/R1
U1＝Ub+Ub*Rx/R1+Ub*Rx/Rb
U1＝Uc+Uc*Rx/R1+Uc*Rx/Rc
wherein, U1For supply voltage, UaIs a first test voltage, UbIs a second test voltage, UcIs a third test voltage, RxIs the actual resistance of the cable, R1Is the actual resistance value, R, of the device sidebIs a first equivalent resistance value, RcIs the second equivalent resistance value.
Optionally, the step of determining, by the detection module, the device state according to the associated information further includes:
the associated information also comprises the minimum voltage of the equipment end, the maximum current of the equipment end and the actual voltage of the equipment end;
determining the actual voltage of the equipment end through the actual resistance value of the cable, the minimum voltage of the equipment end and the maximum current of the equipment end, and judging that the equipment state is abnormal when the actual voltage is less than or equal to a voltage threshold value to give an alarm;
the mathematical expression for determining the actual voltage at the device end from the actual resistance value of the cable, the minimum voltage at the device end, and the maximum current at the device end is:
X＝(U1-Rx*Imax-Umin)≤Y
wherein X is the actual voltage, ImaxIs the maximum current of the equipment terminal, UminThe minimum voltage at the device end, Y is the voltage threshold.
An embodiment of the present application further provides an apparatus, which may include: one or more processors; and one or more machine readable media having instructions stored thereon that, when executed by the one or more processors, cause the apparatus to perform the method of fig. 4. In practical applications, the device may be used as a terminal device, and may also be used as a server, where examples of the terminal device may include: the mobile terminal includes a smart phone, a tablet computer, an electronic book reader, an MP3 (Moving Picture Experts Group Audio Layer III) player, an MP4 (Moving Picture Experts Group Audio Layer IV) player, a laptop, a vehicle-mounted computer, a desktop computer, a set-top box, an intelligent television, a wearable device, and the like.
The present embodiment also provides a non-volatile readable storage medium, where one or more modules (programs) are stored in the storage medium, and when the one or more modules are applied to a device, the device may execute instructions (instructions) included in the data processing method in fig. 4 according to the present embodiment.
Fig. 4 is a schematic diagram of a hardware structure of a terminal device according to an embodiment of the present application. As shown, the terminal device may include: an input device 1100, a first processor 1101, an output device 1102, a first memory 1103, and at least one communication bus 1104. The communication bus 1104 is used to implement communication connections between the elements. The first memory 1103 may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk memory, and the first memory 1103 may store various programs for performing various processing functions and implementing the method steps of the present embodiment.
Alternatively, the first processor 1101 may be, for example, a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a controller, a microcontroller, a microprocessor, or other electronic components, and the processor 1101 is coupled to the input device 1100 and the output device 1102 through a wired or wireless connection.
Optionally, the input device 1100 may include a variety of input devices, such as at least one of a user-oriented user interface, a device-oriented device interface, a software programmable interface, a camera, and a sensor. Optionally, the device interface facing the device may be a wired interface for data transmission between devices, or may be a hardware plug-in interface (e.g., a USB interface, a serial port, etc.) for data transmission between devices; optionally, the user-facing user interface may be, for example, a user-facing control key, a voice input device for receiving voice input, and a touch sensing device (e.g., a touch screen with a touch sensing function, a touch pad, etc.) for receiving user touch input; optionally, the programmable interface of the software may be, for example, an entry for a user to edit or modify a program, such as an input pin interface or an input interface of a chip; the output devices 1102 may include output devices such as a display, audio, and the like.
In this embodiment, the processor of the terminal device includes a function for executing each module of the speech recognition apparatus in each device, and specific functions and technical effects may refer to the above embodiments, which are not described herein again.
Fig. 5 is a schematic hardware structure diagram of a terminal device according to another embodiment of the present application. Fig. 5 is a specific embodiment of the implementation process of fig. 4. As shown, the terminal device of the present embodiment may include a second processor 1201 and a second memory 1202.
The second processor 1201 executes the computer program code stored in the second memory 1202 to implement the method described in fig. 1 in the above embodiment.
The second memory 1202 is configured to store various types of data to support operations at the terminal device. Examples of such data include instructions for any application or method operating on the terminal device, such as messages, pictures, videos, and so forth. The second memory 1202 may include a Random Access Memory (RAM) and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.
Optionally, a second processor 1201 is provided in the processing assembly 1200. The terminal device may further include: communication components 1203, power components 1204, multimedia components 1205, audio components 1206, input/output interfaces 1207, and/or sensor components 1208. The specific components included in the terminal device are set according to actual requirements, which is not limited in this embodiment.
The processing component 1200 generally controls the overall operation of the terminal device. The processing assembly 1200 may include one or more second processors 1201 to execute instructions to perform all or part of the steps of the method illustrated in fig. 4 described above. Further, the processing component 1200 can include one or more modules that facilitate interaction between the processing component 1200 and other components. For example, the processing component 1200 can include a multimedia module to facilitate interaction between the multimedia component 1205 and the processing component 1200.
The power supply component 1204 provides power to the various components of the terminal device. The power components 1204 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the terminal device.
The multimedia components 1205 include a display screen that provides an output interface between the terminal device and the user. In some embodiments, the display screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the display screen includes a touch panel, the display screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.
The audio component 1206 is configured to output and/or input speech signals. For example, the audio component 1206 includes a Microphone (MIC) configured to receive external voice signals when the terminal device is in an operational mode, such as a voice recognition mode. The received speech signal may further be stored in the second memory 1202 or transmitted via the communication component 1203. In some embodiments, audio component 1206 also includes a speaker for outputting voice signals.
The input/output interface 1207 provides an interface between the processing component 1200 and peripheral interface modules, which may be click wheels, buttons, etc. These buttons may include, but are not limited to: a volume button, a start button, and a lock button.
The sensor component 1208 includes one or more sensors for providing various aspects of status assessment for the terminal device. For example, the sensor component 1208 may detect an open/closed state of the terminal device, relative positioning of the components, presence or absence of user contact with the terminal device. The sensor assembly 1208 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact, including detecting the distance between the user and the terminal device. In some embodiments, the sensor assembly 1208 may also include a camera or the like.
The communication component 1203 is configured to facilitate communications between the terminal device and other devices in a wired or wireless manner. The terminal device may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In one embodiment, the terminal device may include a SIM card slot therein for inserting a SIM card therein, so that the terminal device may log onto a GPRS network to establish communication with the server via the internet.
As can be seen from the above, the communication component 1203, the audio component 1206, the input/output interface 1207 and the sensor component 1208 in the embodiment of fig. 5 may be implemented as the input device in the embodiment of fig. 4.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. An apparatus status detection method, comprising:
acquiring the bearing information of the equipment state for multiple times, wherein the bearing information at least comprises one of the following information: testing voltage of the equipment end and equivalent resistance of the load;
determining the associated information of the equipment state through the bearing information, and judging the equipment state through the associated information; the associated information of the device state at least comprises one of the following information: actual voltage of the equipment end and actual resistance of the cable;
the step of acquiring the bearer information of the device state comprises the following steps:
the method comprises the steps that a cable and an equipment end are connected in series, power supply voltage is input into the cable, and first test voltage of the equipment end is detected;
connecting one end of a load in series with the cable, connecting the other end of the load in series with the equipment end, inputting power supply voltage to the cable, changing the equivalent resistance of the load, and obtaining a second test voltage and a third test voltage of the equipment end before and after the equivalent resistance is changed, wherein the test voltages comprise the first test voltage, the second test voltage and the third test voltage, the equivalent resistance comprises a first equivalent resistance and a second equivalent resistance, the test voltage of the equipment end is the second test voltage when the equivalent resistance of the load is the first equivalent resistance, and the test voltage of the equipment end is the third test voltage when the equivalent resistance of the load is the second equivalent resistance;
the step of determining the associated information of the equipment state through the bearing information and judging the equipment state through the associated information comprises the following steps:
determining an actual resistance value of the cable according to the first test voltage, the second test voltage, the third test voltage, the first equivalent resistance value and the second equivalent resistance value;
determining a mathematical expression of the actual resistance of the cable by the first test voltage, the second test voltage, the third test voltage, the first equivalent resistance, and the second equivalent resistance as follows:
U1＝Ua+Ua*Rx/R1
U1＝Ub+Ub*Rx/R1+Ub*Rx/Rb
U1＝Uc+Uc*Rx/R1+Uc*Rx/Rc
wherein, U1For supply voltage, UaIs a first test voltage, UbIs a second test voltage, UcIs a third test voltage, RxIs the actual resistance of the cable, R1Is the actual resistance value, R, of the device sidebIs a first equivalent resistance value, RcIs a second equivalent resistance value;
the step of judging the equipment state through the associated information comprises the following steps:
the associated information also comprises the minimum voltage of the equipment end, the maximum current of the equipment end and the actual voltage of the equipment end;
determining the actual voltage of the equipment end through the actual resistance value of the cable, the minimum voltage of the equipment end and the maximum current of the equipment end, and judging that the equipment state is abnormal when the actual voltage is less than or equal to a voltage threshold value to give an alarm;
the mathematical expression for determining the actual voltage at the device end from the actual resistance value of the cable, the minimum voltage at the device end, and the maximum current at the device end is:
X＝(U1-Rx·Imax-Umin)≤Y
wherein X is the actual voltage, ImaxIs the maximum current of the equipment terminal, UminThe minimum voltage at the device end, Y is the voltage threshold.
2. The device status detecting method according to claim 1, wherein the step of determining the device status by the association information further comprises:
and when the actual resistance value of the cable is larger than or equal to the resistance threshold value, judging that the equipment state is abnormal, and alarming.
3. A device condition detection system, comprising:
the power supply module is used for outputting power supply voltage;
the detection module comprises a load unit, an equipment end and a voltage detection unit, the voltage detection unit is used for detecting the test voltage of the equipment end, the detection module acquires the bearing information of the equipment state, determines the associated information of the equipment state according to the bearing information, and judges the equipment state according to the associated information, and the bearing information at least comprises one of the following: testing voltage of the equipment end and equivalent resistance of the load;
one end of the cable is connected with the load unit in series, and the other end of the cable is connected with the power supply module in series;
the associated information of the device state at least comprises one of the following information: actual voltage of the equipment end and actual resistance of the cable;
the step of acquiring the bearing information of the equipment state by the detection module comprises the following steps:
the method comprises the steps that a cable and an equipment end are connected in series, power supply voltage is input into the cable, and first test voltage of the equipment end is detected;
connecting one end of a load in series with the cable, connecting the other end of the load in series with the equipment end, inputting power supply voltage to the cable, changing the equivalent resistance value of the load, and respectively obtaining a second test voltage and a third test voltage of the equipment end, wherein when the equivalent resistance value of the load is a first equivalent resistance value, the voltage of the equipment end is the second test voltage, and when the equivalent resistance value of the load is a second equivalent resistance value, the voltage of the equipment end is the third test voltage;
determining a mathematical expression of the actual resistance of the cable by the first test voltage, the second test voltage, the third test voltage, the first equivalent resistance, and the second equivalent resistance as follows:
U1＝Ua+Ua*Rx/R1
U1＝Ub+Ub*Rx/R1+Ub*Rx/Rb
U1＝Uc+Uc*Rx/R1+Uc*Rx/Rc
wherein, U1For supply voltage, UaIs a first test voltage, UbIs as followsTwo test voltages, UcIs a third test voltage, RxIs the actual resistance of the cable, R1Is the actual resistance value, R, of the device sidebIs a first equivalent resistance value, RcIs a second equivalent resistance value;
the step of the detection module determining the device state through the associated information further includes:
the associated information also comprises the minimum voltage of the equipment end, the maximum current of the equipment end and the actual voltage of the equipment end;
determining the actual voltage of the equipment end through the actual resistance value of the cable, the minimum voltage of the equipment end and the maximum current of the equipment end, and judging that the equipment state is abnormal when the actual voltage is less than or equal to a voltage threshold value to give an alarm;
the mathematical expression for determining the actual voltage at the device end from the actual resistance value of the cable, the minimum voltage at the device end, and the maximum current at the device end is:
X＝(U1-Rx*Imax-Umin)≤Y
wherein X is the actual voltage, ImaxIs the maximum current of the equipment terminal, UminThe minimum voltage at the device end, Y is the voltage threshold.
4. A computer device, comprising:
one or more processors; and
one or more machine-readable media having instructions stored thereon that, when executed by the one or more processors, cause the apparatus to perform the method of any of claims 1-2.
5. One or more machine readable media having instructions stored thereon that, when executed by one or more processors, cause an apparatus to perform the method of any of claims 1-2.
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