CN112327724A - Instrument interface data monitoring device - Google Patents
Instrument interface data monitoring device Download PDFInfo
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- CN112327724A CN112327724A CN202011375155.5A CN202011375155A CN112327724A CN 112327724 A CN112327724 A CN 112327724A CN 202011375155 A CN202011375155 A CN 202011375155A CN 112327724 A CN112327724 A CN 112327724A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
Abstract
The invention discloses an instrument interface data monitoring device, which comprises: the main board is connected with the interface board; the mainboard comprises a mainboard control unit and a wireless communication module; the interface board comprises an interface board control unit, a signal switch, an instrument interface and an upper computer interface; the instrument interface and the upper computer interface are connected with the interface board control unit; the signal switch is connected with the instrument interface and the upper computer interface, is connected with the laboratory instrument through the instrument interface and is connected with the upper computer through the upper computer interface; the signal switch is used for controlling the data communication state between the laboratory instrument and the upper computer; the interface board control unit is used for collecting communication data between the laboratory instrument and the upper computer and transmitting the communication data to the main board control unit; and the mainboard control unit is used for sending the communication data to the remote service terminal. By implementing the invention, the risk of data leakage can be reduced and the control efficiency of data on-off can be improved.
Description
Technical Field
The invention relates to the technical field of instrument communication data monitoring, in particular to an instrument interface data monitoring device.
Background
The communication data of the laboratory instruments are required to be collected for realizing the intelligent management of the laboratory instruments and equipment, so that the working state of the laboratory instruments can be monitored in real time.
In order to achieve the above purpose in the prior art, client software provided by a third party is generally installed in an upper computer of laboratory instrument equipment, and communication data such as a laboratory instrument self-checking result, laboratory instrument error reporting data, a laboratory instrument operation log, a fault prompt picture and the like can be captured in real time through the client software, and then uploaded to a remote management terminal. In the scheme, client software of a third party needs to be installed on a computer of a user and screen information of a display of the user needs to be intercepted, so that data leakage is easily caused, and the data security is low; on the other hand, in the prior art, if data communication between a laboratory instrument and an upper computer needs to be disconnected, the laboratory instrument or the upper computer is generally closed, the laboratory instrument or the upper computer needs to be frequently opened and closed, the service life of the laboratory instrument or the upper computer can be shortened, the system operation tasks need to be closed one by one when the laboratory instrument or the upper computer is shut down, a series of initialization needs to be performed when the laboratory instrument or the upper computer is started, the reaction time is long, and communication data can not be timely turned off or data can not be timely reconnected.
Disclosure of Invention
The embodiment of the invention provides an instrument interface data monitoring device which can reduce the risk of data leakage during the data acquisition of a laboratory instrument interface and improve the control efficiency of data connection and disconnection between an experimental instrument and an upper computer.
The embodiment of the invention provides an instrument interface data monitoring device, which comprises: the main board is connected with the interface board; the mainboard comprises a mainboard control unit and a wireless communication module; the instrument interface data monitoring device is connected with a remote service terminal through the wireless communication module;
the interface board includes: the interface board control unit, the signal switch, the instrument interface and the upper computer interface; the instrument interface and the upper computer interface are connected with the interface board control unit; one end of the signal switch is connected with the instrument interface, the other end of the signal switch is connected with the upper computer interface, the instrument interface data monitoring device is connected with a laboratory instrument through the instrument interface, and the instrument interface data monitoring device is connected with an upper computer through the upper computer interface;
the signal switch is used for controlling the data communication state between the laboratory instrument and the upper computer;
the interface board control unit is used for acquiring communication data between the laboratory instrument and the upper computer through the instrument interface and transmitting the communication data to the main board control unit;
and the mainboard control unit is used for sending the communication data to the remote service terminal.
Further, the interface board includes a first interface board, the first interface board including: the interface device comprises a first interface board control unit, a first signal switch, a first RS232 interface, a second RS232 interface, a first RS232 interface level conversion chip and a second RS232 interface level conversion chip;
the first RS232 interface is connected with the first RS232 interface level conversion chip, and the first RS232 interface level conversion chip is also connected with the first signal switch and the first interface board control unit;
the second RS232 interface is connected to the second RS232 interface level conversion chip, and the second RS232 interface level conversion chip is further connected to the first signal switch and the first interface board control unit;
the first RS232 interface is used for being connected with a laboratory instrument, and the second RS232 interface is used for being connected with an upper computer.
Further, the first interface board further includes: the first signal switch, the first Ethernet interface, the second Ethernet interface, the first Ethernet interface chip and the second Ethernet interface chip are connected with the first signal switch;
the first Ethernet interface is connected with the first Ethernet interface chip, and the first Ethernet interface chip is also connected with the first interface board control unit;
the second ethernet interface is connected with the second ethernet interface chip, and the second ethernet interface chip is further connected with the first interface board control unit;
the first Ethernet interface is used for being connected with a laboratory instrument, and the second Ethernet interface is used for being connected with an upper computer.
Further, the interface board further includes: a second interface board, the second interface board comprising: the first interface board control unit, the first signal switch, the first USB interface, the second USB interface, the first USB interface chip and the second USB interface chip;
the first USB interface is connected with the first USB interface chip, and the first USB interface chip is also connected with the second interface board control unit;
the second USB interface is connected with the second USB interface chip, and the second USB interface chip is also connected with the second interface board control unit;
the first USB interface is used for being connected with a laboratory instrument, and the second USB interface is used for being connected with an upper computer.
Further, the second interface board further includes: the fourth signal switch, the first GPIB interface, the second GPIB interface, the first GPIB interface logic chip and the second GPIB interface logic chip;
the first GPIB interface is connected with the first GPIB interface logic chip, and the first GPIB interface logic chip is also connected with the second interface board control unit;
the second GPIB interface is connected with the second GPIB interface logic chip, and the second GPIB interface logic chip is also connected with the second interface board control unit;
the first GPIB interface is used for being connected with a laboratory instrument, and the second GPIB interface is used for being connected with an upper computer.
Further, the first interface board and the second interface board further include: a local firmware upgrade port.
Further, the main board further includes: the USB-HID host chip is connected with the mainboard control unit; the USB-HID host chip is used for being connected with an external card reader.
The embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides an instrument interface data monitoring device, wherein the interface monitoring data is arranged between a laboratory instrument and an upper computer and specifically comprises a main board and an interface board, wherein the main board is provided with a main board control unit and a wireless communication module, and the interface board is provided with an interface board control unit, a signal switch, an instrument interface and an upper computer interface. The instrument interface and the upper computer interface are connected with the interface board control unit; one end of the signal switch is connected with the instrument interface, the other end of the signal switch is connected with the upper computer interface, the instrument interface data monitoring device is connected with the laboratory instrument through the instrument interface, and the instrument interface data monitoring device is connected with the upper computer through the upper computer interface; when the device is used, an instrument interface of the instrument interface data monitoring device is connected with a laboratory instrument, an upper computer interface is connected with an upper computer, a signal switch is closed, a data transmission channel is established between the laboratory instrument and the upper computer at the moment, data transmission is carried out, meanwhile, an interface board control unit collects communication data through the instrument interface and then sends the communication data to a mainboard control unit, the mainboard control unit uploads the communication data to a remote control terminal, and the communication data contain various data contents representing the running state of the laboratory instrument, so that real-time monitoring of the laboratory instrument is realized, and in addition, when communication between the laboratory instrument and the upper computer needs to be disconnected, only the signal switch needs to be disconnected. Compared with the prior art, when carrying out laboratory instrument communication data acquisition and monitoring, need not to set up third party client software in the host computer, prevent to be implanted the Trojan horse and improve data security, also need not the screen information of intercepting host computer display screen, reduce the risk that data were revealed, in addition directly through the data communication state between inside signal switch control host computer and the laboratory instrument, the simple operation, the ageing is strong.
Drawings
Fig. 1 is a schematic overall structural diagram of an instrument interface data monitoring apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a motherboard according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a first interface board according to an embodiment of the invention.
Fig. 4 is a schematic structural diagram of a second interface board according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides an instrument interface data monitoring device, which is disposed between a laboratory instrument and an upper computer, and specifically includes:
the mainboard comprises a mainboard control unit and a wireless communication module; the instrument interface data monitoring device is connected with a remote service terminal through the wireless communication module;
the interface board includes: the interface board control unit, the signal switch, the instrument interface and the upper computer interface; the instrument interface and the upper computer interface are connected with the interface board control unit; one end of the signal switch is connected with the instrument interface, the other end of the signal switch is connected with the upper computer interface, the instrument interface data monitoring device is connected with a laboratory instrument through the instrument interface, and the instrument interface data monitoring device is connected with an upper computer through the upper computer interface;
the signal switch is used for controlling the data communication state between the laboratory instrument and the upper computer;
the interface board control unit is used for acquiring communication data between the laboratory instrument and the upper computer through the instrument interface and transmitting the communication data to the main board control unit;
and the mainboard control unit is used for sending the communication data to the remote service terminal.
When the device is used, an instrument interface of the instrument interface data monitoring device is connected with a laboratory instrument, an upper computer interface is connected with an upper computer, a signal switch is closed, a data transmission channel is established between the laboratory instrument and the upper computer at the moment to transmit data, meanwhile, an interface board control unit collects communication data through the instrument interface and then transmits the communication data to a mainboard control unit, the mainboard control unit uploads the communication data to a remote control terminal, and the communication data contain various data contents representing the running state of the laboratory instrument so as to realize real-time monitoring of the laboratory instrument. Compared with the prior art, when carrying out laboratory instrument communication data acquisition and monitoring, need not to set up third party client software in the host computer, prevent to be implanted the Trojan horse and improve data security, also need not the screen information of intercepting host computer display screen, reduce the risk that data were revealed, in addition directly through the data communication state between inside signal switch control host computer and the laboratory instrument, the simple operation, the ageing is strong.
The instrument interface data monitoring device is described in detail below with reference to the accompanying drawings:
as shown in fig. 1, in a preferred embodiment, the device for monitoring instrument interface data includes a main board and two interface boards, where the two interface boards are responsible for collecting communication data between a laboratory instrument and an upper computer, and the main board is responsible for a remote service terminal (e.g., a cloud platform) to interact with each other, and packages the collected communication data and uploads the packaged communication data to the remote service terminal. The two interface boards are respectively a first interface board and a second interface board, wherein the first interface board is an RS232+ Ethernet interface board, and the second interface board is a USB + GPIB interface board.
First, the main board will be explained:
as shown in fig. 2, the main board includes a main board control unit and a wireless communication module, where the wireless communication module includes, but is not limited to, any one or a combination of the following, a 4G communication module, a WIFI module, and a bluetooth module; in a preferred embodiment, further comprising: the USB-HID host chip is connected with the mainboard control unit; the USB-HID host chip is used for being connected with an external card reader.
Schematically, the mainboard control unit can adopt an F4 series MCU chip of ST (semiconductor by Italian language), the 4G module adopts an EC20 module of remote communication, the WIFI module adopts an ESP-12F module of Anxingao science and technology, and the Bluetooth module adopts a WH-BLE102 module of the Internet of things; CH375 is used as a USB-HID host chip. During the use, the 4G module or the WIFI module is used for communicating with the remote service terminal through TCP protocol wireless transmission, and the collected communication data is uploaded to the remote service terminal. The Bluetooth module can be communicated with the mobile client app, and the instrument interface data monitoring device can be configured and monitored through Bluetooth. The USB-HID host chip can support all USB-HID protocol card readers, and a user can control the on-off control of the communication between the laboratory instrument and the upper computer through the card reading. The mainboard can be connected with a computer through a Micro USB data line, and the instrument interface data monitoring device can be configured and self-diagnosed by matched configuration software on the computer.
In the invention, the main board can execute the following functions: the method comprises the following steps that 1, a mainboard control unit packs communication data transmitted by an interface board and then sends the packed communication data to a remote service terminal, so that the remote service terminal judges the working state of a laboratory instrument according to the uploaded communication data, real-time monitoring of the laboratory instrument is achieved, and a corresponding data connection interface is arranged between a mainboard and the interface board for data transmission. And 2, the main board control unit can receive a control switch control instruction sent by the remote service terminal and control the signal switch in the interface board to be switched on or switched off, so that the on-off of signals between the laboratory instrument and the upper computer is controlled. And 3, controlling the signal switch in the interface board to be closed or opened through the card swiping signal received by the USB-HID host chip, so as to control the on-off of the signal between the laboratory instrument and the upper computer.
As shown in fig. 3, for the first interface board, in a preferred embodiment, the first interface board includes: the interface device comprises a first interface board control unit, a first signal switch, a first RS232 interface, a second RS232 interface, a first RS232 interface level conversion chip and a second RS232 interface level conversion chip; the first RS232 interface is connected with the first RS232 interface level conversion chip, and the first RS232 interface level conversion chip is also connected with the first signal switch and the first interface board control unit; the second RS232 interface is connected to the second RS232 interface level conversion chip, and the second RS232 interface level conversion chip is further connected to the first signal switch and the first interface board control unit; the first RS232 interface is used for being connected with a laboratory instrument, and the second RS232 interface is used for being connected with an upper computer. Preferably, the first interface board further includes: the first signal switch, the first Ethernet interface, the second Ethernet interface, the first Ethernet interface chip and the second Ethernet interface chip are connected with the first signal switch; the first Ethernet interface is connected with the first Ethernet interface chip, and the first Ethernet interface chip is also connected with the first interface board control unit; the second ethernet interface is connected with the second ethernet interface chip, and the second ethernet interface chip is further connected with the first interface board control unit; the first Ethernet interface is used for being connected with a laboratory instrument, and the second Ethernet interface is used for being connected with an upper computer.
In this embodiment, the first RS232 interface and the first ethernet interface serve as instrument interfaces for connecting laboratory instruments, and the second RS232 interface and the second ethernet interface serve as upper computer interfaces for connecting an upper computer.
Specifically, in the present invention, the first interface board is an RS232+ ethernet interface board, and preferably, the first interface board control unit is an F4-series MCU chip using ST (semiconductor by law). SN65C3232EDR is adopted as a first RS232 interface level conversion chip and a second RS232 interface level conversion chip. LAN8720A is used as the first ethernet chip and the second ethernet chip, TS5a23166DCUR is used as the signal switch for RS232 signal, i.e. the first signal switch, and TS3L110DR is used as the ethernet signal switch, i.e. the second signal switch.
When the RS232 interface is used for connecting the laboratory instrument and the upper computer, RS232 signals are converted into standard TTL (transistor-transistor logic level) signals through the level conversion chips to be communicated with the first interface board control unit, a signal switch is additionally arranged between the two RS232 interface level conversion chips, and the signal switch can be controlled by the first interface board control unit to control the signal switch to control the on-off of signals between the laboratory instrument and the upper computer. When the signal switch is switched on, the communication between the laboratory instrument and the upper computer is directly connected and is not influenced by the instrument interface monitoring device, and the instrument interface data monitoring device can monitor the communication data between the laboratory instrument and the upper computer through the RS232 interface level conversion chip. For RS232 interface instruments of different models, the instrument interface monitoring device can adapt to data analysis of the instrument through calibration. The working state of the laboratory instrument in the local can be judged by analyzing the communication data of the RS232 interface instrument and the upper computer, and remote diagnosis can be performed on potential problems of the laboratory instrument according to the data. When the signal switch is disconnected, the communication between the laboratory instrument and the upper computer is disconnected, and at the moment, under the condition that the communication protocol between the laboratory instrument and the upper computer is known, the communication with the instrument of the RS232 interface or the upper computer can be simulated through the first interface board control unit and the RS232 interface level conversion chip, and the laboratory instrument is remotely controlled through the remote service terminal.
In this embodiment, the RS232 interface performs monitoring and analog control by converting RS232 interface signals into TTL signals, so as to avoid the influence of negative levels in the RS232 signals on the signal switch. The Ethernet interface is used for data monitoring and analog control from the bottommost physical layer of Ethernet data communication, so that the influence on the original communication caused by the processes of connection establishment and the like in the communication process is avoided, and the phenomenon of data incompatibility of different equipment is also avoided.
When an Ethernet Interface is used for connecting a laboratory instrument and an upper computer, an RMII Interface (Reduced Media Independent Interface which is another implementation except for an MII Interface in IEEE 802.3u standard) is realized by Ethernet signals through an Ethernet Interface chip and is communicated with a first Interface board control unit, and a signal switch is added between the two Ethernet interfaces to control the on-off of signals between the laboratory instrument and the upper computer through the first Interface board control unit. When the signal switch is switched on, the communication between the laboratory instrument and the upper computer is equal to and directly connected without being influenced by the instrument interface data monitoring device, and the instrument interface data monitoring device can monitor the communication data between the laboratory instrument and the upper computer through the Ethernet interface chip at the moment. For different types of Ethernet interface laboratory instruments, the instrument interface data monitoring device can adapt to the data analysis of the laboratory instrument through calibration. The local working state of the laboratory instrument can be judged by analyzing the communication data of the Ethernet interface laboratory instrument and the upper computer, and remote diagnosis can be performed on potential problems of the laboratory instrument according to the data. When the signal switch is disconnected, the communication between the laboratory instrument and the upper computer is disconnected, and at the moment, under the condition that the communication protocol between the laboratory instrument and the upper computer is known, the communication with the laboratory instrument or the upper computer of the Ethernet interface can be simulated through the first interface board control unit and the Ethernet interface chip, and the laboratory instrument is remotely controlled through the remote service terminal.
In the embodiment, the data rate of the USB interface is high, so that the FPGA is used for processing the USB data, and the condition judgment of the laboratory instrument is inaccurate or the communication data is lost due to untimely data processing is avoided. The USB interface adopts the chip to carry out data monitoring or analog control and also analyzes from the physical layer signal of the USB, thereby not influencing the connection and communication between a laboratory instrument and an upper computer and avoiding the phenomenon of incompatible data of different USB devices. In the scheme, the GPIB interface has more pins and data are parallel signals, so that the monitoring is faster and more convenient by adopting the FPGA.
In a preferred embodiment, a local firmware upgrade port is reserved in the first interface board, and local upgrade can be directly performed on a new function developed subsequently, so that an old user can experience the new function without purchasing new hardware.
As shown in fig. 4, for the second interface board, in a preferred embodiment, the second interface board includes: the first interface board control unit, the first signal switch, the first USB interface, the second USB interface, the first USB interface chip and the second USB interface chip; the first USB interface is connected with a first USB interface chip, and the first USB interface chip is also connected with a second interface board control unit; the second USB interface is connected with a second USB interface chip, and the second USB interface chip is also connected with a second interface board control unit; the first USB interface is used for being connected with a laboratory instrument, and the second USB interface is used for being connected with an upper computer. Preferably, the second interface board further includes: the fourth signal switch, the first GPIB interface, the second GPIB interface, the first GPIB interface logic chip and the second GPIB interface logic chip; the first GPIB interface is connected with a first GPIB interface logic chip, and the first GPIB interface logic chip is also connected with a second interface board control unit; the second GPIB interface is connected with a second GPIB interface logic chip, and the second GPIB interface logic chip is also connected with a second interface board control unit; the first GPIB interface is used for being connected with a laboratory instrument, and the second GPIB interface is used for being connected with an upper computer.
In this embodiment, the first USB interface and the first GPIB interface are used as instrument interfaces for connecting laboratory instruments, and the second USB interface and the second GPIB interface are used as host computer interfaces for connecting a host computer.
Specifically, the second interface board is a USB + GPIB interface board. Preferably, a Cyclone IV-series FPGA of ALTERA (ALTERA) is used as the second interface board control unit, USB3500 is used as the first USB interface chip and the second USB interface chip, SN75ALS160 and SN75ALS162 are used as the 8-bit universal bus transceiver logic chip and the first GPIB interface logic chip and the second GPIB interface logic chip, TS3USB221DRCR is used as the third signal switch, and TS3a4751PWR is used as the fourth signal switch.
When a laboratory instrument and an upper computer are connected by adopting a USB Interface, a chip of a UTMI (USB2.0Transceiver macrocell Interface, UTMI is a USB2.0 high-speed equipment detection protocol) Interface is adopted to convert a USB differential signal into an 8-bit parallel port signal through the USB Interface chip to be communicated with the FPGA, and a signal switch is arranged between the two USB interfaces and can control the on-off of signals between the laboratory instrument and the upper computer through the FPGA control signal switch. When the signal switch is switched on, the communication between the laboratory instrument and the upper computer is equal to and directly connected without being influenced by the instrument interface data monitoring device, and the instrument interface data monitoring device can monitor the communication data between the laboratory instrument and the upper computer through the USB interface chip at the moment. For different types of USB interface laboratory instruments, the instrument interface data monitoring device can adapt to data analysis of the laboratory instrument through calibration, and can be compatible with all USB interface laboratory instruments of USB2.0 and below. The remote service terminal can judge the local working state of the laboratory instrument by analyzing the communication data of the USB interface laboratory instrument and the upper computer, and can perform remote diagnosis on potential problems of the laboratory instrument according to the data. When the signal switch is disconnected, the communication between the laboratory instrument and the upper computer is disconnected, the laboratory instrument with the USB interface can be simulated by the USB interface chip controlled by the FPGA to communicate with the upper computer under the condition that the communication protocol between the laboratory instrument and the upper computer is known, or the laboratory instrument is simulated by the USB interface chip controlled by the FPGA to communicate with the upper computer, and the laboratory instrument is controlled by the remote service terminal.
When a GPIB interface is adopted to connect a laboratory instrument and an upper computer, two 8-bit universal bus transceiver logic chips are adopted to convert GPIB signals and then communicate with the FPGA, and a signal switch is additionally arranged between the two GPIB interfaces to control the on-off of signals between the laboratory instrument and the upper computer through the FPGA control signal switch. When the signal switch is switched on, the communication between the laboratory instrument and the upper computer is directly connected and is not influenced by the instrument interface data monitoring device, and the instrument interface data monitoring device can monitor the communication data between the laboratory instrument and the upper computer by controlling the data direction of the logic chip of the 8-bit universal bus transceiver through the FPGA. For GPIB interface laboratory instruments of different models, the instrument interface data monitoring device can adapt to data analysis of the laboratory instrument through calibration. The working state of the laboratory instrument in the local can be judged by analyzing the communication data of the GPIB interface laboratory instrument and the upper computer, and remote diagnosis can be carried out on potential problems of the laboratory instrument according to the data. When the signal switch is disconnected, the laboratory instrument and the upper computer are disconnected in communication, the laboratory instrument of the upper computer and the GPIB interface can be simulated to communicate through the FPGA control two 8-bit universal bus transceivers under the condition that the communication protocol between the laboratory instrument and the upper computer is known, or the laboratory instrument of the GPIB interface is simulated to communicate with the upper computer, and the laboratory instrument is remotely controlled through the cloud platform.
In a preferred embodiment, a local firmware upgrade port is also reserved for the USB + GPIB interface board, and local upgrade can be directly performed for new functions subsequently developed, so that an old user can experience the new functions without purchasing new hardware.
In a preferred embodiment, the main board, the first interface board and the second interface board are designed in a stacked manner, so that the occupied area of the instrument interface data monitoring device can be reduced.
Preferably, a data transmission interface is arranged between the main board and the interface board, and the data transmission between the main board and the interface board adopts a self-defined private data transmission protocol for data transmission, so that the interconnection between the laboratory instrument and the upper computer is completed through the interface board, and the external interconnection with the remote service terminal is completed through the main board. The main board and the interface board are designed in a separated mode, and a user-defined private protocol is adopted between the main board and the interface board for transmission, so that malicious users can be prevented from permeating into the instrument interface data monitoring device through the remote service terminal, then the instrument interface data monitoring device further initiates attacks on the laboratory instrument or the laboratory internal network where the laboratory instrument is located, and the network security is improved,
in the invention, after the mainboard control unit uploads the collected communication data to the remote service terminal, the remote service terminal can judge the working state of the laboratory instrument according to the uploaded communication data and carry out remote fault diagnosis.
The specific remote service terminal judges the working state of the laboratory instrument in the following way:
firstly, according to the communication data, determining the data transmission frequency and the data transmission quantity between the laboratory instrument and the upper computer, and comparing the data transmission frequency and the data transmission quantity with the preset transmission frequency and the preset data transmission quantity in each working state, thereby determining the working state of the laboratory instrument.
Second, the determination is made based on the specific data content in the communication data. In the invention, the remote service terminal is provided with a corresponding laboratory instrument database, and the laboratory instrument database stores data corresponding to laboratory instruments of various types: the method comprises the model of the laboratory instrument, the identification of the starting working data of the laboratory instrument, the identification of the ending working data of the laboratory instrument and the corresponding fault code when various types of faults occur.
After the remote service terminal receives the communication data transmitted by the instrument interface data monitoring device, extracting from the communication data: the model of the laboratory instrument, the running state identifier and the fault information identifier of the laboratory instrument are searched in the database, the real-time communication data between the laboratory instrument and the upper computer is compared with the laboratory instrument in the database, and the working state or the fault type of the laboratory instrument is judged. For example, the start-of-work data for a model of laboratory instrument is "start to work! ", The end work data is" The work is finished! ", the corresponding fault code is" 002 "when a crash fault occurs"
If the communication data includes "start to work! "The operation status is identified, it is determined that The laboratory instrument is working, and if The communication data includes" The work is finished! "the running status flag indicates that the laboratory instrument is finished working, and when the received communication data includes the" 002 "fault information flag. This indicates that the laboratory instrument has died.
The embodiment of the invention has the following beneficial effects:
1. different from the traditional laboratory instrument data acquisition mode, by adopting the technical scheme disclosed by the invention, third-party client software does not need to be arranged in the upper computer, the Trojan horse is prevented from being implanted, the data security is improved, the screen information of a display screen of the upper computer does not need to be intercepted, and the risk of data leakage is reduced.
2. When the instrument interface data monitoring device disclosed by the invention is used for collecting data, the upper computer and the laboratory instrument can be directly connected through the signal switch, and the data communication between the laboratory instrument and the upper computer is not interfered.
3. The interface board is provided with various data interfaces, so that the connection of various different laboratory instruments can be realized, and the compatibility is strong.
4. The data communication state between direct signal switch through inside host computer and the laboratory instrument, the simple operation, response speed is fast, and the ageing is strong.
5. The communication data of the laboratory instrument is acquired and analyzed, so that the working state of the laboratory instrument is judged and the fault is diagnosed, and the real-time monitoring and the remote diagnosis of the working state of the laboratory instrument are completed.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (7)
1. The instrument interface data monitoring device is characterized in that the instrument interface data monitoring device is arranged between a laboratory instrument and an upper computer;
the instrument interface data monitoring device comprises: the main board is connected with the interface board;
the mainboard comprises a mainboard control unit and a wireless communication module; the instrument interface data monitoring device is connected with a remote service terminal through the wireless communication module;
the interface board includes: the interface board control unit, the signal switch, the instrument interface and the upper computer interface; the instrument interface and the upper computer interface are connected with the interface board control unit; one end of the signal switch is connected with the instrument interface, the other end of the signal switch is connected with the upper computer interface, the instrument interface data monitoring device is connected with a laboratory instrument through the instrument interface, and the instrument interface data monitoring device is connected with an upper computer through the upper computer interface;
the signal switch is used for controlling the data communication state between the laboratory instrument and the upper computer;
the interface board control unit is used for acquiring communication data between the laboratory instrument and the upper computer through the instrument interface and transmitting the communication data to the main board control unit;
and the mainboard control unit is used for sending the communication data to the remote service terminal through the wireless communication module.
2. The instrument interface data monitoring device of claim 1 wherein the interface board comprises a first interface board, the first interface board comprising: the interface device comprises a first interface board control unit, a first signal switch, a first RS232 interface, a second RS232 interface, a first RS232 interface level conversion chip and a second RS232 interface level conversion chip;
the first RS232 interface is connected with the first RS232 interface level conversion chip, and the first RS232 interface level conversion chip is also connected with the first signal switch and the first interface board control unit;
the second RS232 interface is connected to the second RS232 interface level conversion chip, and the second RS232 interface level conversion chip is further connected to the first signal switch and the first interface board control unit;
the first RS232 interface is used for being connected with a laboratory instrument, and the second RS232 interface is used for being connected with an upper computer.
3. The instrument interface data monitoring device of claim 2 wherein the first interface board further comprises: the first signal switch, the first Ethernet interface, the second Ethernet interface, the first Ethernet interface chip and the second Ethernet interface chip are connected with the first signal switch;
the first Ethernet interface is connected with the first Ethernet interface chip, and the first Ethernet interface chip is also connected with the first interface board control unit;
the second ethernet interface is connected with the second ethernet interface chip, and the second ethernet interface chip is further connected with the first interface board control unit;
the first Ethernet interface is used for being connected with a laboratory instrument, and the second Ethernet interface is used for being connected with an upper computer.
4. The instrument interface data monitoring device of claim 3 wherein said interface board further comprises: a second interface board, the second interface board comprising: the first interface board control unit, the first signal switch, the first USB interface, the second USB interface, the first USB interface chip and the second USB interface chip;
the first USB interface is connected with the first USB interface chip, and the first USB interface chip is also connected with the second interface board control unit;
the second USB interface is connected with the second USB interface chip, and the second USB interface chip is also connected with the second interface board control unit;
the first USB interface is used for being connected with a laboratory instrument, and the second USB interface is used for being connected with an upper computer.
5. The instrument interface data monitoring device of claim 4 wherein the second interface board further comprises: the fourth signal switch, the first GPIB interface, the second GPIB interface, the first GPIB interface logic chip and the second GPIB interface logic chip;
the first GPIB interface is connected with the first GPIB interface logic chip, and the first GPIB interface logic chip is also connected with the second interface board control unit;
the second GPIB interface is connected with the second GPIB interface logic chip, and the second GPIB interface logic chip is also connected with the second interface board control unit;
the first GPIB interface is used for being connected with a laboratory instrument, and the second GPIB interface is used for being connected with an upper computer.
6. The instrument interface data monitoring device of claim 5 wherein the first interface board and the second interface board further comprise: a local firmware upgrade port.
7. The instrument interface data monitoring device of claim 1 wherein said motherboard further comprises: the USB-HID host chip is connected with the mainboard control unit; the USB-HID host chip is used for being connected with an external card reader.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011375155.5A CN112327724A (en) | 2020-11-30 | 2020-11-30 | Instrument interface data monitoring device |
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| CN202011375155.5A CN112327724A (en) | 2020-11-30 | 2020-11-30 | Instrument interface data monitoring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112882977A (en) * | 2021-02-08 | 2021-06-01 | 广州仪速安电子科技有限公司 | Instrument state monitoring method and system based on multiple interfaces |
| CN113155174A (en) * | 2021-02-08 | 2021-07-23 | 广州仪速安电子科技有限公司 | Instrument state monitoring method and system based on feature codes |
| CN113157621A (en) * | 2021-02-08 | 2021-07-23 | 广州仪速安电子科技有限公司 | Multi-interface instrument state monitoring method and system based on feature codes |
-
2020
- 2020-11-30 CN CN202011375155.5A patent/CN112327724A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112882977A (en) * | 2021-02-08 | 2021-06-01 | 广州仪速安电子科技有限公司 | Instrument state monitoring method and system based on multiple interfaces |
| CN113155174A (en) * | 2021-02-08 | 2021-07-23 | 广州仪速安电子科技有限公司 | Instrument state monitoring method and system based on feature codes |
| CN113157621A (en) * | 2021-02-08 | 2021-07-23 | 广州仪速安电子科技有限公司 | Multi-interface instrument state monitoring method and system based on feature codes |
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