CN214098410U - Paperless recorder - Google Patents
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- CN214098410U CN214098410U CN202022894466.4U CN202022894466U CN214098410U CN 214098410 U CN214098410 U CN 214098410U CN 202022894466 U CN202022894466 U CN 202022894466U CN 214098410 U CN214098410 U CN 214098410U
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Abstract
The utility model relates to an industrial instrument technical field, its aim at provides a paperless record appearance. The paperless recorder comprises a main control module, a data acquisition module, a display module, an input module and a storage module; the data acquisition module is used for acquiring and outputting industrial data; the input module is used for receiving and outputting a control instruction; the main control module is used for receiving and processing the industrial data input by the data acquisition module, storing the industrial data, the fault information, the alarm information and/or the normal operation information into the storage module, and then sending the fault information, the alarm information and/or the normal operation information to the display module; and the main control module is used for receiving and processing the control instruction input by the input module, receiving the configuration file input by the storage module and acting according to the control instruction. The utility model discloses the security is high, can avoid the problem that data were revealed.
Description
Technical Field
The utility model relates to an industrial instrument technical field especially relates to a paperless recorder.
Background
The paperless recorder can take the acquired or operated data as a basic axis with time, and does not consume any conventional recording facilities. When the paperless recorder is used, the contents which are originally required to be recorded by tools such as paper, pen ink and the like can be stored in a storage module in the recorder, and the stored data in the recorder can be displayed on a liquid crystal screen after being calculated and simulated. However, in the use process of the paperless recorder in the prior art, parameter configuration is usually performed in a mode of packaging a software package in summer, so that data in the paperless recorder is easy to leak, and the problem that the security of the paperless recorder is low is caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving above-mentioned technical problem to a certain extent at least, the utility model provides a paperless record appearance.
The utility model adopts the technical proposal that:
a paperless recorder comprises a main control module, a data acquisition module, a display module, an input module and a storage module, wherein the data acquisition module, the display module, the input module and the storage module are all electrically connected with the main control module;
the data acquisition module is used for acquiring and outputting industrial data;
the input module is used for receiving and outputting a control instruction;
the main control module is used for receiving and processing the industrial data input by the data acquisition module, generating fault information, alarm information and/or normal operation information according to the processed industrial data, storing the industrial data, the fault information, the alarm information and/or the normal operation information into the storage module, and then sending the fault information, the alarm information and/or the normal operation information to the display module; the main control module is used for receiving and processing the control instruction input by the input module, receiving the configuration file input by the storage module and acting according to the control instruction.
Preferably, the paperless recorder further comprises a case and a back plate, the back plate is electrically connected with a slot terminal, the data acquisition module is inserted into the slot terminal, and the main control module is electrically connected with the data acquisition module sequentially through the back plate and the slot terminal.
Preferably, the data acquisition module comprises an AI module, an RTD module, a TC module, a DI module and/or a PI module, wherein the AI module is used for acquiring and outputting an analog input signal, the RTD module is used for acquiring and outputting a thermal resistance input signal, the TC module is used for acquiring and outputting a thermocouple input signal, the DI module is used for acquiring and outputting a switching value input signal, and the PI module is used for acquiring and outputting a digital pulse value input signal.
Preferably, the main control module is electrically connected with a storage interface, and the main control module is electrically connected with the storage module through the storage interface.
Preferably, the paperless recorder further comprises a communication module, the backboard is further electrically connected with a communication interface, the communication module is inserted into the communication interface, and the main control module is electrically connected with the communication module sequentially through the backboard and the communication interface.
Preferably, the main control module comprises an ARM chip and a first FPGA chip electrically connected with the ARM chip, the ARM chip is electrically connected with a display module interface, an input module interface and a storage interface, and the first FPGA chip is electrically connected with a data transmission interface;
the first FPGA chip is used for receiving and processing industrial data through the data transmission interface and then sending the processed industrial data to the ARM chip;
the ARM chip is used for receiving the processed industrial data, obtaining fault information, alarm information and/or normal operation information according to the processed industrial data, and then outputting the fault information, the alarm information and/or the normal operation information to the display module interface and the storage interface; the ARM chip is also used for receiving the configuration file input by the storage interface.
Further preferably, the ARM chip is communicated with the first FPGA chip through a GPMC interface, and the data acquisition module is communicated with the first FPGA chip through RS 485.
Further preferably, the main control module further comprises a monitoring module, and the ARM chip and the first FPGA chip are electrically connected to the monitoring module.
Preferably, the data acquisition module comprises a second FPGA chip, the second FPGA chip is electrically connected with the data acquisition channel, and the data transmission interface of the second FPGA chip is electrically connected with the back plate.
Further preferably, the data acquisition channel comprises a channel acquisition module, a channel diagnosis module, a first isolation module and a second isolation module, one pole of the first isolation module is electrically connected with the second FPGA chip, the other pole of the first isolation module is electrically connected with one pole of the second isolation module sequentially through the channel diagnosis module and the channel acquisition module, and the other pole of the second isolation module is electrically connected with the second FPGA chip.
The utility model has the advantages that: the security is high, can avoid the problem that data revealed. Particularly, the utility model provides a paperless record appearance is in the use, paperless record appearance is installed in the scene, host system can receive outside storage module's configuration file, then host system can be to data acquisition module, display module and input module run the configuration, in addition, configuration file accessible storage module is leading-in to the field device in, the field device reads and analyzes the configuration file, carry out the check-up comparison with configuration information and on-the-spot actual configuration, and according to correct configuration operation equipment, the user still can carry out equipment on the spot through the display module of equipment, parameter setting and real-time status, operations such as historical record information is looked over. In this embodiment, the paperless recorder can be configured with a multifunctional acquisition module to realize acquisition, display and storage functions of various input signals. Historical data accessible memory card copies to the host computer, carries out functional operation such as data analysis, demonstration, statistical analysis by the host computer to promote the security of main control module for the paperless record appearance, avoid the problem that data easily revealed in the paperless record appearance that causes through the wireless communication configuration.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a block diagram of a paperless recorder according to the present invention;
fig. 2 is a block diagram of a main control module of the present invention;
fig. 3 is a block diagram of the data acquisition module of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. The present invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments of the present invention.
It should be understood that, for the term "and/or" as may appear herein, it is merely an associative relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, B exists alone, and A and B exist at the same time; for the term "/and" as may appear herein, which describes another associative object relationship, it means that two relationships may exist, e.g., a/and B, may mean: a exists independently, and A and B exist independently; in addition, for the character "/" that may appear herein, it generally means that the former and latter associated objects are in an "or" relationship.
It will be understood that when an element is referred to herein as being "connected," "connected," or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. Conversely, if a unit is referred to herein as being "directly connected" or "directly coupled" to another unit, it is intended that no intervening units are present. In addition, other words used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between … …" versus "directly between … …", "adjacent" versus "directly adjacent", etc.).
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, and/or groups thereof.
It should also be noted that, in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may, in fact, be executed substantially concurrently, or the figures may sometimes be executed in the reverse order, depending upon the functionality/acts involved.
It should be understood that specific details are provided in the following description to facilitate a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. For example, systems may be shown in block diagrams in order not to obscure the examples in unnecessary detail. In other instances, well-known processes, structures and techniques may be shown without unnecessary detail in order to avoid obscuring example embodiments.
Example 1:
the embodiment provides a paperless recorder, as shown in fig. 1, which includes a main control module, a data acquisition module, a display module, an input module, and a storage module, where the data acquisition module, the display module, the input module, and the storage module are all electrically connected to the main control module;
the data acquisition module is used for acquiring and outputting industrial data;
the input module is used for receiving and outputting a control instruction;
the main control module is used for receiving and processing the industrial data input by the data acquisition module, generating fault information, alarm information and/or normal operation information according to the processed industrial data, storing the industrial data, the fault information, the alarm information and/or the normal operation information into the storage module, and then sending the fault information, the alarm information and/or the normal operation information to the display module; the main control module is used for receiving and processing the control instruction input by the input module, receiving the configuration file input by the storage module and acting according to the control instruction.
And in the running state of the paperless recorder, the main control module and the data acquisition module are in redundant communication.
The security of this embodiment is high, can avoid the problem that data revealed. Specifically, in the use process of the paperless recorder in this embodiment, the paperless recorder is installed on the site, the main control module can receive the configuration file of the external storage module, then the main control module can perform operation configuration on the data acquisition module, the display module and the input module, in addition, the configuration file can be imported into the field device through the storage module, the field device reads and analyzes the configuration file, the configuration information and the actual configuration on the site are verified and compared, the device is operated according to the correct configuration, and a user can perform operations such as device, parameter setting, real-time state and historical record information viewing on site through the display module of the device. In this embodiment, the paperless recorder can be configured with a multifunctional acquisition module to realize acquisition, display and storage functions of various input signals. Historical data accessible memory card copies to the host computer, carries out functional operation such as data analysis, demonstration, statistical analysis by the host computer to promote the security of main control module for the paperless record appearance, avoid the problem that data easily revealed in the paperless record appearance that causes through the wireless communication configuration.
In this embodiment, the paperless recorder further includes a chassis and a back plate, a slot terminal is electrically connected to the back plate, the data acquisition module is inserted into the slot terminal, the main control module is electrically connected to the data acquisition module sequentially through the back plate and the slot terminal, the main control module is electrically connected to the back plate through a flat cable, the display module and the input module are both electrically connected to the main control module through a flat cable, and in this embodiment, the main control module realizes communication and GPIO state data interaction with the data acquisition module through the back plate. The embodiment adopts the modularized design, the back plate is provided with the slot terminal, and the data acquisition module is electrically connected with the back plate through the slot terminal, so that the data acquisition module is electrically connected with the back plate; the main control module is electrically connected with the back plate through the flat cable and is electrically connected with the data acquisition module through the back plate. In this embodiment, the chassis is implemented by a general chassis, the backplane is implemented by a general chassis backplane, the backplane is installed in the chassis, the backplane is further electrically connected to a power interface module for connecting a power supply, and the main control module, the data acquisition module, the display module and the input module are all electrically connected to the power interface module.
In this embodiment, the flat cable connected between the main control module and the backplane forms a redundant channel between the main control module and the data acquisition module, and the redundant channel includes two transceiver interfaces (TX/RX), so as to implement data communication between the main control module and the data acquisition module.
In this embodiment, the data acquisition module includes an AI module, an RTD module, a TC module, a DI module, and/or a PI module, where the AI module is used for acquisition and output of an analog input signal, the RTD module is used for acquisition and output of a thermal resistance input signal, the TC module is used for acquisition and output of a thermocouple input signal, the DI module is used for acquisition and output of a switching value input signal, and the PI module is used for acquisition and output of a digital pulse value input signal. In this embodiment, the slot terminal on the backplane may be configured with any one of an AI module, an RTD module, a TC module, a DI module, and a PI module.
In this embodiment, the main control module is electrically connected to a storage interface, and the main control module is electrically connected to the storage module through the storage interface. The storage module can be inserted into the storage interface, and it should be noted that the main control module can store the configuration file into the storage module. In addition, the main control module can store the received industrial data into the storage module in real time, then the historical industrial data can be copied to the upper computer through the storage module, and the upper computer performs functional operations such as data analysis, display, statistical analysis and the like. Therefore, the safe operation of the paperless recorder is realized, and the problem of data leakage in the main control module caused by direct communication between the paperless recorder and an upper computer is avoided.
It should be understood that, if there is no safety concern, in order to implement convenient communication between the paperless recorder and the upper computer, in this embodiment, the paperless recorder may further include a communication module, the backplane is further electrically connected with a communication interface, the communication module is inserted into the communication interface, and the main control module is electrically connected with the communication module sequentially through the backplane and the communication interface. It should be noted that the main control module can also be directly connected with an upper computer through a communication module in a communication manner, the upper computer can perform user right configuration, device configuration, parameter configuration and the like on the main control module and generate a device configuration file, the main control module stores the configuration file into the storage module, at this time, the storage module can also import the configuration file into the field device in an off-line manner, the field device can read and analyze the configuration file, the configuration information is verified and compared with the actual field configuration, and the device is operated according to the correct configuration. In addition, the user can remotely check the contents such as industrial data, historical record information and the like received by the main control module through the upper computer. The user authority configuration comprises user authority management, user number management, user login management and the like; the equipment is configured to carry out configuration operation on the data acquisition module and the channel thereof; the parameter configuration is to configure parameters of each channel, equipment parameters, data storage time parameters and the like of the data acquisition module.
In this embodiment, as shown in fig. 2, the main control module includes an ARM (Advanced RISC Machines) chip and a first FPGA chip electrically connected to the ARM chip, where the ARM chip is electrically connected to a display module interface, an input module interface, and a storage interface, and the first FPGA chip is electrically connected to a data transmission interface;
the first FPGA chip is used for receiving and processing industrial data through the data transmission interface and then sending the processed industrial data to the ARM chip;
the ARM chip is used for receiving the processed industrial data, obtaining fault information, alarm information and/or normal operation information according to the processed industrial data, and then outputting the fault information, the alarm information and/or the normal operation information to the display module interface and the storage interface; the ARM chip is also used for receiving the configuration file input by the storage interface.
In this embodiment, the display module interface is used to connect to a display module such as an LCD screen, the input module interface is used to connect to an input module such as a keyboard, and the storage interface is used to connect to a storage module such as an SD card. In this embodiment, the capacity of the storage module is 64GB, and data storage with a capacity of 64GB can be realized. In this embodiment, the display mode of the display module includes digital display, bar graph display, curve display, an alarm list, and the like, and the data collected by the first FPGA chip generally includes data such as temperature, pressure, flow, liquid level, voltage, current, humidity, frequency, vibration, and rotational speed.
The FPGA (Field Programmable Gate Array) chip not only solves the defects of a customized circuit, but also overcomes the defect that the number of Gate circuits of the original Programmable device is limited.
The main control module for the paperless recorder is used for collecting collected data reported by the modules, storing, displaying and inquiring data, fault, alarm information and the like, and can set users, equipment and parameters through keys and an LCD screen.
The security of this embodiment is high, can avoid the problem that data revealed. Specifically, the ARM chip in this embodiment is connected to an external storage module through the storage module, and in a use process, the ARM chip can receive a configuration file of the external storage module through the storage interface, and then the ARM chip can perform operation configuration on the first FPGA chip, the display module, and the input module, so that the security of the main control module for the paperless recorder is improved.
In this embodiment, the data transmission interface of the first FPGA chip is electrically connected to the backplane through the flat cable, the backplane is provided with the slot terminal, and the data acquisition module is electrically connected to the backplane through the slot terminal, thereby achieving the electrical connection between the data acquisition module and the first FPGA chip. The bus connected between the first FPGA chip and the back plate forms a redundant channel between the main control module and the data acquisition module, and the ARM chip can also configure channel parameters and data storage parameters based on a configuration file acquired by the external storage module.
It should be noted that the main control module in this embodiment is a core of the paperless recorder, and has a main function of managing user rights, communicating with each data acquisition module according to device parameters configured by a user, issuing configuration parameters and control commands, receiving real-time acquisition data uploaded by each data acquisition module, performing logic operation and data processing, coordinating each data acquisition module to complete a system control function, and detecting an operation state of each data acquisition module, processing fault information, alarm information, and the like.
The main control module stores data according to parameters configured by a user and synchronously stores the acquired data and the state into the storage module.
The main control module is externally connected with an LCD display screen and a keyboard, and a user can carry out interactive operation through the keyboard and the LCD screen to realize the functions of equipment parameter configuration, real-time state display, historical data query and the like.
In the operating state, the device can operate according to the parameters configured by the user, and the working principle of the main control module is as follows:
1) the main control module is in redundant communication with each data acquisition module and issues parameter configuration and control commands to the data acquisition modules;
2) each data acquisition module acquires a field sensor signal and uploads the field sensor signal to the main control module;
3) the main control module receives the acquired data uploaded by each data acquisition module and performs logic operation and data processing;
4) the main control module detects the running states of the main control module and each data acquisition module, processes fault alarm information of the main control module and each data acquisition module, and performs running state indication;
5) the main control module stores the acquired and processed data and state information into an internal memory and an external memory module according to a storage time parameter set by a user.
In this embodiment, the main control module further includes a monitoring module, and the ARM chip and the first FPGA chip are both electrically connected to the monitoring module. In this embodiment, the monitoring module is implemented by an MPU (Microprocessor Unit), and the MPU can diagnose and monitor the ARM chip and the first FPGA chip.
In this embodiment, the ARM chip is further electrically connected with a status indication interface; when the ARM chip obtains fault information, alarm information and/or normal operation information according to the processed industrial data, the fault information, the alarm information and/or the normal operation information are output to the state indicating interface. It should be understood that the status indication interface is used for connecting a status indication lamp, and the status indication lamp is used for displaying device fault information, alarm information and/or normal operation information, and specifically, the status indication lamp can display the device fault information, alarm information and/or normal operation information through different colors, so that a user can check the device operation status in time.
In this embodiment, the ARM chip is further electrically connected to a reset button. In the process of using the functional embodiment, the user can reset the ARM chip through the reset button.
In this embodiment, the ARM chip is further electrically connected to an RTC (Real _ Time Clock). The RTC is used for realizing the timing function of the main control module.
In this embodiment, both the ARM chip and the first FPGA chip are electrically connected to an internal memory.
In this embodiment, the internal memory is implemented by a memory with a specification of DDR3 and/or a FLASH memory.
In this embodiment, the ARM chip and the first FPGA chip are both connected to a JTAG interface. It should be noted that JTAG (Joint Test Action Group) is an international standard Test protocol (IEEE 1149.1 compliant), and the JTAG interface is mainly used for internal Test of the first FPGA chip.
In this embodiment, the power input electrode of the ARM chip is electrically connected to the power diagnosis module. And the power input electrode of the ARM chip is electrically connected with a power diagnosis module. In this embodiment, the power supply diagnosis module can carry out power supply diagnosis on the ARM chip, and is favorable for improving the power consumption safety of the ARM chip.
Further, the ARM chip communicates with the first FPGA chip through a GPMC (Group Policy Management controller) interface, and the data acquisition module communicates with the first FPGA chip through RS 485. Therefore, the ARM chip and the first FPGA chip realize high-speed data communication through the GPMC interface, and the first FPGA chip is responsible for data analysis, verification, processing and forwarding functions. The GPMC provides a centralized group policy management scheme, so that network problems possibly caused by incorrect group policies can be greatly reduced, security problems related to the group policies are simplified, difficulties in group policy deployment are solved, and heavy burden borne by administrators in group policy implementation can be relieved.
In this embodiment, as shown in fig. 3, the data acquisition module includes a second FPGA chip, the second FPGA chip is electrically connected to the data acquisition channel, and the data transmission interface of the second FPGA chip is electrically connected to the backplane through a flat cable.
Furthermore, the data acquisition channel comprises a channel acquisition module, a channel diagnosis module, a first isolation module and a second isolation module, one pole of the first isolation module is electrically connected with the second FPGA chip, the other pole of the first isolation module is electrically connected with one pole of the second isolation module sequentially through the channel diagnosis module and the channel acquisition module, and the other pole of the second isolation module is electrically connected with the second FPGA chip.
In this embodiment, the second FPGA chip is further connected to a monitoring module, an EEPROM (Electrically Erasable Programmable read only memory), an indicator light, and a JTAG interface.
The various embodiments described above are merely illustrative, and may or may not be physically separate, as they relate to elements illustrated as separate components; if reference is made to a component displayed as a unit, it may or may not be a physical unit, and may be located in one place or distributed over a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: modifications of the technical solutions described in the embodiments or equivalent replacements of some technical features may still be made. Such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Finally, it should be noted that the present invention is not limited to the above-mentioned alternative embodiments, and that various other forms of products can be obtained by anyone in light of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the following claims, and which can be used to interpret the claims.
Claims (9)
1. A paperless recorder is characterized in that: the device comprises a main control module, a data acquisition module, a display module, an input module and a storage module, wherein the data acquisition module, the display module, the input module and the storage module are all electrically connected with the main control module;
the data acquisition module is used for acquiring and outputting industrial data;
the input module is used for receiving and outputting a control instruction;
the main control module comprises an ARM chip and a first FPGA chip electrically connected with the ARM chip, the ARM chip is electrically connected with a display module interface, an input module interface and a storage interface, and the first FPGA chip is electrically connected with a data transmission interface;
the first FPGA chip is used for receiving and processing industrial data through the data transmission interface and then sending the processed industrial data to the ARM chip;
the ARM chip is used for receiving the processed industrial data, obtaining fault information, alarm information and/or normal operation information according to the processed industrial data, and then outputting the fault information, the alarm information and/or the normal operation information to the display module interface and the storage interface; the ARM chip is also used for receiving the configuration file input by the storage interface.
2. A paperless recorder as claimed in claim 1, wherein: the paperless recorder further comprises a case and a back plate, wherein a slot terminal is electrically connected to the back plate, the data acquisition module is inserted into the slot terminal, and the main control module is electrically connected with the data acquisition module sequentially through the back plate and the slot terminal.
3. A paperless recorder as claimed in claim 1, wherein: the data acquisition module comprises an AI module, an RTD module, a TC module, a DI module and/or a PI module, wherein the AI module is used for collecting and outputting analog input signals, the RTD module is used for collecting and outputting thermal resistance input signals, the TC module is used for collecting and outputting thermocouple input signals, the DI module is used for collecting and outputting switching value input signals, and the PI module is used for collecting and outputting digital pulse value input signals.
4. A paperless recorder as claimed in claim 1, wherein: the main control module is electrically connected with a storage interface and is electrically connected with the storage module through the storage interface.
5. A paperless recorder as claimed in claim 2, wherein: the paperless recorder further comprises a communication module, the back plate is further electrically connected with a communication interface, the communication module is inserted into the communication interface, and the main control module is electrically connected with the communication module sequentially through the back plate and the communication interface.
6. A paperless recorder as claimed in claim 1, wherein: the ARM chip is communicated with the first FPGA chip through a GPMC interface, and the data acquisition module is communicated with the first FPGA chip through RS 485.
7. A paperless recorder as claimed in claim 1, wherein: the main control module further comprises a monitoring module, and the ARM chip and the first FPGA chip are electrically connected with the monitoring module.
8. A paperless recorder as claimed in claim 1, wherein: the data acquisition module comprises a second FPGA chip, the second FPGA chip is electrically connected with a data acquisition channel, and a data transmission interface of the second FPGA chip is electrically connected with the back plate.
9. A paperless recorder as claimed in claim 8, wherein: the data acquisition channel comprises a channel acquisition module, a channel diagnosis module, a first isolation module and a second isolation module, one pole of the first isolation module is electrically connected with the second FPGA chip, the other pole of the first isolation module is electrically connected with one pole of the second isolation module through the channel diagnosis module and the channel acquisition module in sequence, and the other pole of the second isolation module is electrically connected with the second FPGA chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022894466.4U CN214098410U (en) | 2020-12-03 | 2020-12-03 | Paperless recorder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022894466.4U CN214098410U (en) | 2020-12-03 | 2020-12-03 | Paperless recorder |
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| CN214098410U true CN214098410U (en) | 2021-08-31 |
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| CN202022894466.4U Active CN214098410U (en) | 2020-12-03 | 2020-12-03 | Paperless recorder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112486581A (en) * | 2020-12-03 | 2021-03-12 | 北京群源电力科技有限公司 | Paperless recorder and working method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112486581A (en) * | 2020-12-03 | 2021-03-12 | 北京群源电力科技有限公司 | Paperless recorder and working method thereof |
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