CN220231866U - Main and standby machine automatic switching device of ground resistivity meter - Google Patents
Main and standby machine automatic switching device of ground resistivity meter Download PDFInfo
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Abstract
The utility model discloses a first aspect, a master-slave automatic switching device of a ground resistivity meter, which comprises a monitoring module, a first switching module and a second switching module; wherein, as an overall functionality is described: the monitoring module is used for monitoring the working state of the host and observing the voltage measurement between the lines of the device; the first switching module is used for switching connection between a power supply line of the observation device and a main machine or a standby machine of the earth resistivity meter; the second switching module is used for switching connection between the measuring circuit of the observation device and the host or the standby machine of the earth resistivity meter; the working state of the ground resistivity host in use is monitored through the monitoring module, a switching command is sent to the first switching module and the second switching module after the fault is monitored, the connection between the main ground resistivity instrument and the external observation device is disconnected, and the connection between the standby ground resistivity instrument and the external observation device is completed.
Description
Technical Field
The utility model relates to the technical field of seismic earth resistivity observation, in particular to an automatic switching device of a master and slave machine of an earth resistivity meter.
Background
The earth resistivity in seismic monitoring is a symmetric quadrupole device with fixed electrode positions at a station, and the change of the equivalent resistivity of a medium in a fixed detection range along with time is observed once in 1 hour at present. The observation pole distance AB of the station is usually around 1000m, and the measurement pole distance MN is 1/3-1/5AB.
The observation instrument adopts a ZD8 series (ZD 8BI and ZD 8M) earth resistivity observation instrument produced by the earth stress research of the China earthquake bureau, a steady current source is adopted to output constant current with known intensity through power supply electrodes A and B in a forward and reverse power supply mode during observation, then the potential difference between two measuring electrodes M and N is measured, and the natural potential difference is eliminated through subtraction of two groups of measured values of forward and reverse power supply. One observation typically reads 5-10 observations and takes the average as the measurement for a single observation. The mean square error of 5-10 observations is calculated as the error of this observation, which is called the observation accuracy.
The earth resistivity observation has higher requirements on the quality of observed data, and in order to avoid human activity interference, most earth resistivity observation stations are positioned in places far away from urban areas and relatively quiet, and are unattended stations, and the earth resistivity instrument automatically measures on time. From the foregoing description, it is clear that the ground resistivity observation station has larger external observation field and more lines. The observation room is provided with a standby resistivity instrument, but the standby instrument needs to be manually moved to an observation site to be replaced after the fault due to the limitation of an external device. The automatic switching device of the master and slave machines of the earth resistivity meter can automatically monitor the working state, automatically switch the connection between the master and slave machines and the external circuit, reduce the fault time and improve the running continuity rate of the system.
Therefore, an automatic switching device of a master and slave of a ground resistivity meter is provided.
Disclosure of Invention
In view of this, the embodiment of the utility model is expected to provide an automatic switching device of a master and slave of a ground resistivity meter, so as to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial choice;
the technical scheme of the embodiment of the utility model is realized as follows:
in a first aspect, an automatic switching device of a master and slave machine of a ground resistivity meter comprises a monitoring module, a first switching module and a second switching module;
wherein, as an overall functionality is described: the monitoring module is used for monitoring the working state of the host and observing the voltage measurement between the lines of the device; the first switching module is used for switching connection between a power supply line of the observation device and a main machine or a standby machine of the earth resistivity meter; the second switching module is used for switching connection between the measuring circuit of the observation device and the host or the standby machine of the earth resistivity meter;
in the above embodiment, the following embodiments are described: through the mutual coordination among the monitoring module, the first switching module and the second switching module, the modules are driven to carry out carrying and driving of specified functions by outputting a plurality of groups of linkage signals to carry out multi-terminal linkage and a coordination mode thereof.
In the above embodiment, the following embodiments are described: the driving mode described above is not limited thereto; as a preferred technical solution, it may also be preferred to select the following types: the monitoring module includes: the system comprises a host monitoring unit, an observation line voltage measuring unit and a communication unit; the host monitoring unit is in interactive connection with the communication unit; the first switching module is in interactive connection with the observation line voltage measuring unit; the first switching module includes: the external observation device power supply line interface, the main ground resistivity meter power supply line interface and the standby ground resistivity meter power supply line interface are used for switching connection between an observation device power supply line and a ground resistivity meter host or a standby machine; the observation line voltage measurement unit is in interactive connection with the second switching module, and the communication unit is connected with the second switching module; the second switching module includes: an external observation device measures a line interface, a ground resistivity meter standby machine measures the line interface and a standby ground resistivity meter measures the line interface; the device is used for switching the connection between the measuring circuit of the observation device and the main machine or the standby machine of the earth resistivity meter; the host monitoring unit comprises a host state monitoring interface of the ground resistivity meter and a standby state monitoring interface of the ground resistivity meter; the host monitoring unit is used for monitoring the power state, the working state and the alarm state of the ground resistivity meter; the power supply line potential measurement unit is used for measuring the voltage condition between lines when the earth resistivity meter is in a measurement state; the communication unit sends the control command corresponding to the monitoring unit to the first switching module and the second switching module.
In the above embodiment, the following embodiments are described: based on the driving mode, the working state of the used ground resistivity host is monitored through the monitoring module, a switching command is sent to the first switching module and the second switching module after the fault is monitored, the connection between the main ground resistivity instrument and the external observation device is disconnected, and the connection between the standby ground resistivity instrument and the external observation device is completed. After the fault of the main earth resistivity instrument is realized, the main earth resistivity and the standby earth resistivity are automatically switched with the external observation device, the interruption of observation data during the process that the staff goes to the site is avoided, and the operation continuity rate of the earth resistivity observation system is improved
In the above embodiment, the following embodiments are described: the driving mode described above is not limited thereto; as a preferred technical solution, it may also be preferred to select the following types: at the same time, the external observation device is communicated with one of a host machine or a standby machine of the ground resistivity meter; the host monitoring unit monitors the ground resistivity meter in a use state; the first switching module and the second switching module switch the connection between the lines of the two earth resistivity instruments according to the monitoring module, and only one earth resistivity instrument is communicated with an external line at the same time.
On the other hand, based on the above, the utility model also provides a ground resistivity meter: the ground resistivity meter comprises a ground resistivity meter module in the prior art, and on the basis, the ground resistivity meter main and standby machine automatic switching device is cooperatively connected.
Compared with the prior art, the utility model has the beneficial effects that: the working state of the ground resistivity host in use is monitored through the monitoring module, a switching command is sent to the first switching module and the second switching module after the fault is monitored, the connection between the main ground resistivity instrument and the external observation device is disconnected, and the connection between the standby ground resistivity instrument and the external observation device is completed. After the fault of the main earth resistivity instrument is realized, the main and standby resistivity and the external observation device are automatically switched, the interruption of observation data during the process that a worker goes to the site is avoided, and the operation continuity rate of the earth resistivity observation system is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the current situation of a resistivity observation system;
FIG. 2 is a schematic diagram of a system for observing earth resistivity according to an embodiment of the present application;
fig. 3 is a schematic diagram of an automatic switching device of a master and slave of a resistivity meter according to an embodiment of the present application.
Reference numerals:
1. a monitoring module;
11. a host monitoring unit; 12. an observation line voltage measurement unit; 13. a communication unit; 111. a host state monitoring interface; 112. a standby state monitoring interface;
2. a first switching module;
21. an external observation device power supply line interface; 22. a main ground resistivity meter power supply line interface; 23. a standby ground resistivity meter power supply line interface;
3. a second switching module;
31. the external observation device measures the line interface; 32. measuring a line interface by a main ground resistivity meter;
33. the standby earth resistivity meter measures the line interface.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. This utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below;
it should be noted that the terms "first," "second," "symmetric," "array," and the like are used merely for distinguishing between description and location descriptions, and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of features indicated. Thus, a feature defining "first," "symmetry," or the like, may explicitly or implicitly include one or more such feature; also, where certain features are not limited in number by words such as "two," "three," etc., it should be noted that the feature likewise pertains to the explicit or implicit inclusion of one or more feature quantities;
in the prior art, the ground resistivity observation has higher requirements on the quality of observed data, in order to avoid human activity interference, most of ground resistivity observation stations are located at relatively quiet places far away from urban areas and are unattended stations, and a ground resistivity meter automatically measures on time. From the foregoing description, it is clear that the ground resistivity observation station has larger external observation field and more lines. The observation room is provided with a standby earth resistivity instrument, but the standby instrument is required to be manually moved to an observation site to be replaced after the fault due to the limitation of an external device; therefore, based on the requirements of providing an automatic switching device of a master and slave of a ground resistivity meter for automatically monitoring the working state, automatically switching the connection between the master and slave and an external circuit, reducing the fault time and improving the system operation continuity, referring to fig. 1-3, the present utility model provides a technical scheme to solve the technical problems: an automatic switching device of a master and slave machine of a ground resistivity meter comprises a monitoring module 1, a first switching module 2 and a second switching module 3;
wherein, as an overall functionality is described: the monitoring module 1 is used for monitoring the working state of the host and observing the voltage measurement between the lines of the device; the first switching module 2 is used for switching connection between a power supply line of the observation device and a main machine or a standby machine of the earth resistivity meter; the second switching module 3 is used for switching connection between the measuring circuit of the observation device and the main machine or the standby machine of the earth resistivity meter;
in this scheme, the module is a main body functional mechanism in the device provided in this embodiment; on the basis of the module, the outer part of the module is matched with a protective shell; specifically, the protective shell is used as a reference supporting structure of the whole device, provides a foundation for the device to cooperate with the external environment, and can be matched with external staff to carry out maintenance, adjustment, assembly of related parts and other conventional maintenance operations;
in the above embodiment, the following embodiments are described: through the mutual coordination among the monitoring module 1, the first switching module 2 and the second switching module 3, a plurality of groups of linkage signals are output to carry out multi-terminal linkage and a coordination mode thereof, and the modules are driven to carry out appointed functions and drive the modules;
in some embodiments of the present application, please refer to fig. 1-3 in combination: wherein the monitoring module 1 comprises: a host monitoring unit 11, an observation line voltage measuring unit 12 and a communication unit 13; the host monitoring unit 11 is interactively connected with the communication unit 13; the first switching module 2 is in interactive connection with the observation line voltage measuring unit 12;
based on the above-mentioned monitoring module 1, the first switching module 2 preferably comprises: the external observation device power supply line interface 21, the main ground resistivity meter power supply line interface 22 and the standby ground resistivity meter power supply line interface 23 are used for switching connection between the observation device power supply line and a ground resistivity meter host or standby;
specifically, the second switching module 3 is configured to switch connection between a measurement line of the external observation device and a measurement line of the main ground resistivity meter or the standby ground resistivity meter; the host monitoring unit 11 monitors the power state, the working state and the alarm state of the host of the ground resistivity meter in use; the observation line voltage measurement unit 12 measures the voltage condition between the observation lines when the earth resistivity meter is in a measurement state; the communication unit 13 sends control commands corresponding to the monitoring unit to the first switching module 2 and the second switching module 3; the data processing module receives the data information and processes the data information.
Illustratively, the observation line voltage measurement unit 12 is interactively connected with the second switching module 3, and the communication unit 13 is connected with the second switching module 3; the second switching module 3 includes: an external observation device measurement line interface 31, a ground resistivity meter standby measurement line interface 32, and a standby ground resistivity meter measurement line interface 33; the device is used for switching the connection between the measuring circuit of the observation device and the main machine or the standby machine of the earth resistivity meter; the host monitoring unit 11 includes a ground resistivity meter host state monitoring interface 111 and a ground resistivity meter standby state monitoring interface 112; the host monitoring unit 11 is used for monitoring the power state, the working state and the alarm state of the ground resistivity meter; the power supply line potential measuring unit measures the voltage condition between lines when the earth resistivity meter is in a measuring state; the communication unit 13 sends control commands corresponding to the monitoring unit to the first switching module 2 and the second switching module 3;
it will be appreciated that in this embodiment, the first switching module 2 is provided with an external observation device power supply line interface 21, a main land resistivity meter power supply line interface 22, a standby land resistivity meter measurement line interface 33, and a standby land resistivity meter power supply line interface 23, for switching the connection of the external observation device power supply line with the power supply line of the main land resistivity meter or the standby land resistivity meter;
it can be understood that in this embodiment, the monitoring module 1 monitors the working state of the in-use earth resistivity host, and sends a switching command to the first switching module 2 and the second switching module 3 after detecting a fault, so as to disconnect the main earth resistivity meter from the external observation device and complete the connection of the standby earth resistivity meter from the external observation device. After the main earth resistivity instrument fails, the main earth resistivity and the standby resistivity are automatically switched with an external observation device, so that interruption of observation data during the process that a worker goes to the site is avoided, and the operation continuity rate of an earth resistivity observation system is improved;
it will be appreciated that in this particular embodiment, the functional description of the modules described above is non-limiting; based on actual use requirements, the principle is not changed, and the method is exemplified: the first switching module 2 is preferably a power supply line switching module, and the second switching module 3 is preferably a measurement line switching module;
the power supply line switching module and the measuring line switching module are used for switching connection between the observation device and the main machine or the standby machine of the ground resistivity meter. The specific driving principle is the same as the above.
In the scheme, all electric elements of the whole device are powered by mains supply; specifically, the electric elements of the whole device are in conventional electrical connection with the position of the commercial power output port through a relay, a transformer, a button panel and other devices, so that the energy supply requirements of all the electric elements of the device are met;
preferably, all electrical components of the whole device can be powered by an external storage battery; specifically, the electric elements of the whole device are in conventional electrical connection with the output port of the storage battery through a relay, a transformer, a button panel and other devices, so that the energy supply requirements of all the electric elements of the device are met.
In the scheme, the device is provided with the relevant active control modules; based on the actual use requirement, the outside of the device can be matched with another controller to serve as a relay control end or a master control end, and a worker can provide more use functions for the monitoring module 1, the first switching module 2 and the second switching module 3 of the device based on the relay control end or the master control end;
the device is characterized in that a total control controller is arranged outside the device and is used for connecting and controlling all electric elements of the whole device to drive according to a preset program as a preset value and a drive mode; it should be noted that the driving mode corresponds to the corresponding start-stop or functional output parameter between the related electrical components, and meets the requirement that the related electrical components drive the related mechanical device to operate according to the described functions.
Preferably, the master controller is a PLC controller, and the programming requirements are completed through ladder diagram programming, sequential function diagram programming, function block diagram programming, instruction sheet programming or structure text programming and other conventional PLC programming modes; it should be noted that the output parameters such as the operation start-stop time interval, the rotation speed, the power and the like of the electric element or other power elements driven by the programming are not limited; specifically, the relevant program is adjusted according to the actual use requirement.
It should be noted that, in the present embodiment, the present apparatus is an operation based on an existing earth resistivity observer;
illustratively, the resistivity observer of the ZD8 series (ZD 8BI and ZD 8M) uses a steady current source to output a constant current of known intensity through the supply electrodes A and B in a forward and reverse power supply manner during observation, then measures the potential difference between the two measurement electrodes M and N, and eliminates the natural potential difference by subtracting the two sets of measurement values of the forward and reverse power supply. One observation typically reads 5-10 observations and takes the average as the measurement for a single observation. The mean square error of 5-10 observations is calculated as the error of this observation, which is called the observation accuracy.
Based on the above, please refer to fig. 2 to 3: illustratively, at the same time, the external observation device is in a communication state with one of the master or slave of the resistivity tool (the communication state is as shown);
wherein, the host monitoring unit 11 monitors the earth resistivity meter in a use state; the first switching module 2 and the second switching module 3 switch the connection between the lines of the two earth resistivity instruments according to the monitoring module 1, so that only one earth resistivity instrument is communicated with the external line at the same time.
In this scheme, preferably, the above-mentioned master controller or host computer monitoring unit 11 also disposes wireless transmitting module and wireless receiving module, the wireless transmitting module sends out the instruction signal of work or suspension to transmit to the wireless receiving module via the medium;
for example, a worker may input an instruction to the wireless transceiver module through the background wireless remote control device to remotely control the main controller or the host monitoring unit 11, and further remotely control all the electrical components of the device to be driven according to the related driving mode; meanwhile, the wireless transceiver module can also transmit relevant parameters or other information detected by relevant sensing elements or a system of the servo driving element in the device to a background staff.
The technical features of the above-described embodiments may be combined in any manner, and for brevity, all of the possible combinations of the technical features of the above-described embodiments may not be described, however, they should be considered as the scope of the present description as long as there is no contradiction between the combinations of the technical features.
Example 1
In order to make the above-described embodiments of the present utility model more comprehensible, embodiments accompanied with the present utility model are described in detail by way of example. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, so that the utility model is not limited to the embodiments disclosed below.
The present embodiment is based on the relevant principles described in the above detailed description, where exemplary applications are:
s1, a monitoring module 1, a first switching module 2 and a second switching module 3 are adopted;
s2, under the same time, the external observation device is communicated with one of a host machine or a standby machine of the ground resistivity meter;
s3, the host monitoring unit 11 monitors the ground resistivity meter in a use state; the first switching module 2 and the second switching module 3 switch the connection between the lines of the two earth resistivity meters according to the monitoring module 1;
and S4, monitoring the working state of the used ground resistivity host through the monitoring module 1, and sending a switching command to the first switching module 2 and the second switching module 3 after the fault is detected, so as to disconnect the main ground resistivity instrument from the external observation device and complete the connection of the standby ground resistivity instrument from the external observation device. After the fault of the main earth resistivity instrument is realized, the main and standby resistivity and the external observation device are automatically switched, the interruption of observation data during the process that a worker goes to the site is avoided, and the operation continuity rate of the earth resistivity observation system is improved.
The above examples merely illustrate embodiments of the utility model that are specific and detailed for the relevant practical applications, but are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Example two
In order to make the above-described embodiments of the present utility model more comprehensible, embodiments accompanied with the present utility model are described in detail by way of example. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, so that the utility model is not limited to the embodiments disclosed below.
The present embodiment is based on the relevant principles described in the above detailed description, where exemplary applications are:
s1, a monitoring module 1, a first switching module 2 and a second switching module 3 are adopted;
s2, under the same time, the external observation device is communicated with one of a host machine or a standby machine of the ground resistivity meter;
s3, the outside can be matched with another controller to serve as a relay control end or a master control end, and a worker can provide an external master control function for the monitoring module 1, the first switching module 2 and the second switching module 3 of the device based on the relay control end or the master control end; the overall controller or the host monitoring unit 11 is also provided with a wireless transmitting module and a wireless receiving module, wherein the wireless transmitting module sends out an instruction signal of working or suspending to the wireless receiving module through a medium;
s4, the host monitoring unit 11 monitors the ground resistivity meter in a use state; the first switching module 2 and the second switching module 3 switch the connection between the lines of the two earth resistivity meters according to the monitoring module 1;
s5, monitoring the working state of the used ground resistivity host through the monitoring module 1, sending a switching command to the first switching module 2 and the second switching module 3 after detecting faults, disconnecting the main ground resistivity instrument from the external observation device, and completing connection of the standby ground resistivity instrument and the external observation device. After the main earth resistivity instrument fails, the main earth resistivity and the standby resistivity are automatically switched with an external observation device, so that interruption of observation data during the process that a worker goes to the site is avoided, and the operation continuity rate of an earth resistivity observation system is improved;
s6, a worker can input an instruction to the wireless transceiver module through a background wireless remote control device so as to remotely control the master controller or the host monitoring unit 11, and further, all electric elements of the device are remotely controlled to drive according to a related driving mode; meanwhile, the wireless transceiver module can also transmit relevant parameters or other information detected by relevant sensing elements or a system of the servo driving element in the device to a background staff.
The above examples merely illustrate embodiments of the utility model that are specific and detailed for the relevant practical applications, but are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Example III
In order to make the above-described embodiments of the present utility model more comprehensible, embodiments accompanied with the present utility model are described in detail by way of example. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, so that the utility model is not limited to the embodiments disclosed below.
The present embodiment is based on the relevant principles described in the above detailed description, where exemplary applications are:
s1, a monitoring module 1, a first switching module 2 and a second switching module 3 are adopted;
s2, under the same time, the external observation device is communicated with one of a host machine or a standby machine of the ground resistivity meter;
s3, the outside can be matched with another controller to serve as a relay control end or a master control end, and a worker can provide an external master control function for the monitoring module 1, the first switching module 2 and the second switching module 3 of the device based on the relay control end or the master control end; the overall controller or the host monitoring unit 11 is also provided with a wireless transmitting module and a wireless receiving module, wherein the wireless transmitting module sends out an instruction signal of working or suspending to the wireless receiving module through a medium;
s4, connecting a plurality of groups of automatic switching devices of the master and slave machines of the earth resistivity meter based on the monitoring module 1, the first switching module 2 and the second switching module 3 in parallel through the controller in the S3;
s5, the host monitoring unit 11 monitors the ground resistivity meter in a use state; the first switching module 2 and the second switching module 3 switch the connection between the lines of the two earth resistivity meters according to the monitoring module 1;
s6, monitoring the working state of the used ground resistivity host through the monitoring module 1, sending a switching command to the first switching module 2 and the second switching module 3 after detecting faults, disconnecting the main ground resistivity instrument from the external observation device, and completing connection of the standby ground resistivity instrument and the external observation device. After the main earth resistivity instrument fails, the main earth resistivity and the standby resistivity are automatically switched with an external observation device, so that interruption of observation data during the process that a worker goes to the site is avoided, and the operation continuity rate of an earth resistivity observation system is improved;
s7, a worker can input an instruction to the wireless transceiver module through a background wireless remote control device so as to remotely control the master controller or the host monitoring unit 11, and further, all electric elements of the device are remotely controlled to drive according to a related driving mode; meanwhile, the wireless transceiver module can also transmit related parameters or other information detected by a related sensing element or a system of a servo driving element in the device to a background staff;
s8, based on S7, workers can receive a plurality of groups of automatic master-slave switching devices of the earth resistivity meter based on the monitoring module 1, the first switching module 2 and the second switching module 3 which are connected in parallel based on the controller through background integration and send relevant processing instructions to the automatic master-slave switching devices.
The above examples merely illustrate embodiments of the utility model that are specific and detailed for the relevant practical applications, but are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Example IV
In order to make the above-described embodiments of the present utility model more comprehensible, embodiments accompanied with the present utility model are described in detail by way of example. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, so that the utility model is not limited to the embodiments disclosed below.
The present embodiment is based on the relevant principles described in the above detailed description, where exemplary applications are:
s1, taking a monitoring module 1, a first switching module 2 and a second switching module 3 as an assembly module of an automatic switching device of a main machine and a standby machine of a ground resistivity meter, arranging the assembly module in the ground resistivity meter, and connecting the assembly module with the ground resistivity meter module to form an integral device;
s2, under the same time, the external observation device is communicated with one of a host machine or a standby machine of the ground resistivity meter;
s3, the host monitoring unit 11 monitors the ground resistivity meter in a use state; the first switching module 2 and the second switching module 3 switch the connection between the lines of the two earth resistivity meters according to the monitoring module 1;
and S4, monitoring the working state of the used ground resistivity host through the monitoring module 1, and sending a switching command to the first switching module 2 and the second switching module 3 after the fault is detected, so as to disconnect the main ground resistivity instrument from the external observation device and complete the connection of the standby ground resistivity instrument from the external observation device. After the fault of the main earth resistivity instrument is realized, the main and standby resistivity and the external observation device are automatically switched, the interruption of observation data during the process that a worker goes to the site is avoided, and the operation continuity rate of the earth resistivity observation system is improved.
The above examples merely illustrate embodiments of the utility model that are specific and detailed for the relevant practical applications, but are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (9)
1. The automatic switching device of the master and slave machines of the earth resistivity meter is characterized by comprising a monitoring module (1), a first switching module (2) and a second switching module (3);
the monitoring module (1) is used for monitoring the working state of the host and observing the voltage measurement between the lines of the device;
the first switching module (2) is used for switching connection between a power supply line of the observation device and a main machine or a standby machine of the earth resistivity meter;
the second switching module (3) is used for switching connection between the measuring circuit of the observation device and the main machine or the standby machine of the earth resistivity meter.
2. The automatic switching device of a master and slave of a ground resistivity machine according to claim 1, wherein: the monitoring module (1) comprises: the system comprises a host monitoring unit (11), an observation line voltage measuring unit (12) and a communication unit (13);
the host monitoring unit (11) is in interactive connection with the communication unit (13).
3. The automatic switching device of a master and slave of a ground resistivity machine according to claim 2, wherein:
the first switching module (2) is in interactive connection with the observation line voltage measuring unit (12);
the first switching module (2) comprises: the external observation device power supply line interface (21), the main ground resistivity meter power supply line interface (22) and the standby ground resistivity meter power supply line interface (23) are used for switching connection between an observation device power supply line and a ground resistivity meter host or standby.
4. The automatic switching device of a master and slave of a ground resistivity machine according to claim 2, wherein:
the observation line voltage measurement unit (12) is in interactive connection with the second switching module (3), and the communication unit (13) is connected with the second switching module (3);
the second switching module (3) comprises: an external observation device measuring line interface (31), a ground resistivity meter standby measuring line interface (32) and a standby ground resistivity meter measuring line interface (33);
the device is used for switching the connection between the measuring line of the observation device and the main machine or the standby machine of the ground resistivity meter.
5. The automatic switching device of a master and slave of a ground resistivity machine according to any one of claims 2 to 4, wherein: the host monitoring unit (11) comprises a host state monitoring interface (111) of the ground resistivity meter and a standby state monitoring interface (112) of the ground resistivity meter;
the host monitoring unit (11) is used for monitoring the power state, the working state and the alarm state of the ground resistivity meter;
the power supply line potential measuring unit measures the voltage condition between lines when the earth resistivity meter is in a measuring state.
6. The automatic switching device of a master and slave of a ground resistivity machine according to claim 5, wherein: the communication unit (13) sends the control command of the monitoring unit to the first switching module (2) and the second switching module (3).
7. The automatic switching device of a master and slave of a ground resistivity machine according to claim 5, wherein: at the same time, the external observation device is communicated with one of the main machine or the standby machine of the ground resistivity meter.
8. The automatic switching device of a master and slave of a ground resistivity machine according to claim 5, wherein: the host monitoring unit (11) monitors the earth resistivity meter in a use state.
9. The automatic switching device of a master and slave of a ground resistivity machine according to claim 8, wherein: the first switching module (2) and the second switching module (3) switch connection between lines of two earth resistivity instruments according to the monitoring module (1), and only one earth resistivity instrument is communicated with an external line at the same time.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320284695.5U CN220231866U (en) | 2023-02-22 | 2023-02-22 | Main and standby machine automatic switching device of ground resistivity meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320284695.5U CN220231866U (en) | 2023-02-22 | 2023-02-22 | Main and standby machine automatic switching device of ground resistivity meter |
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| CN220231866U true CN220231866U (en) | 2023-12-22 |
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| CN202320284695.5U Active CN220231866U (en) | 2023-02-22 | 2023-02-22 | Main and standby machine automatic switching device of ground resistivity meter |
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| CN (1) | CN220231866U (en) |
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