CN114567666A - System, method and device for realizing automatic discovery and automatic test for production line instrument equipment, processor and storage medium thereof - Google Patents
System, method and device for realizing automatic discovery and automatic test for production line instrument equipment, processor and storage medium thereof Download PDFInfo
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- CN114567666A CN114567666A CN202210198393.6A CN202210198393A CN114567666A CN 114567666 A CN114567666 A CN 114567666A CN 202210198393 A CN202210198393 A CN 202210198393A CN 114567666 A CN114567666 A CN 114567666A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
- H04L63/0227—Filtering policies
- H04L63/0236—Filtering by address, protocol, port number or service, e.g. IP-address or URL
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention relates to a system for realizing automatic discovery and automatic test aiming at instrument equipment in a production line, which comprises a server and an instrument, wherein the instrument and the server are in the same local area network, the instrument is provided with a dynamic distribution IP, the information of the instrument is multicast in the local area network when the instrument is started, the server searches and discovers the online instrument in the local area network, and sends a request to acquire the IP information of the instrument through a DNS-SD service. The invention also relates to a method, a device, a processor and a computer readable storage medium for realizing automatic discovery and automatic testing of the production line instrument equipment. By adopting the system, the method, the device, the processor and the computer readable storage medium for realizing automatic discovery and automatic testing for the production line instruments and equipment, manual setting is avoided, labor cost and operation and maintenance cost are saved, the state information of each instrument in the whole system can be monitored, time cost is saved, efficiency is improved, and the efficiency of system data acquisition is improved.
Description
Technical Field
The invention relates to the field of automatic control of instruments, in particular to the field of remote control of instruments, and specifically relates to a system, a method, a device, a processor and a computer readable storage medium for realizing automatic discovery and automatic testing of production line instruments.
Background
At present, many high-end manufacturing industries need to automatically detect performance indexes of products, various instruments with network functions are brought to production lines in continuous updating, and the instruments added in a local area network environment need to be manually added into the whole automatic system, so that the automatic system increases a lot of labor cost.
mDNS (RFC6762), MulticastNDS, primarily enables hosts within a local area network to discover and communicate with each other without a traditional DNS server.
DNS-SD (RFC6763), DNS-based service discovery, is a method of browsing network services using standard DNS programming interfaces, servers, and packet formats.
LAN eXtension for Instrumentation (LXI) is a standard developed by LXI Consortium. The LXI standard defines a communication protocol for instruments and data acquisition systems using ethernet.
The standard command of the SCPI programmable instrument defines a set of standard syntax and command for controlling the programmable test and measurement instrument.
HiSLIP (high speed LAN Instrument protocol) is a TCP/IP based protocol for remotely controlling LAN based test and measurement instruments.
The IP addresses of the instruments and meters are found, and the protocols supported by the instruments and meters are communicated, so that the running states of the instruments and meters are remotely controlled and monitored. For high-end instruments and meters basically support control of an SCPI instruction set, and instrument remote instructions can be controlled through a standard HiSLIP or Socket protocol.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a system, a method, a device, a processor and a computer readable storage medium thereof, which have the advantages of high efficiency, low cost and wide application range and are used for realizing automatic discovery and automatic testing of production line instruments and equipment.
In order to achieve the above object, the system, method, apparatus, processor and computer readable storage medium for implementing automatic discovery and automatic test for production line instrument device of the present invention are as follows:
the system for realizing automatic discovery and automatic testing of instrument equipment in a production line is mainly characterized by comprising a server and instrument equipment, wherein the instrument equipment and the server are in the same local area network, the instrument equipment is provided with a dynamic allocation IP (Internet protocol), information of the instrument equipment is multicast in the local area network when the instrument equipment is started, the server searches and discovers the online instrument equipment in the local area network, and sends a request to acquire the IP information of the instrument equipment through a DNS-SD (domain name system-secure digital) service.
Preferably, the instrumentation instrument opens multicast service through MDNS service.
Preferably, the DNS-SD service uses 4 DNS type records in the request process, namely, a PTR record, an SRV record, a TXT record, and an a record, where the PTR record identifies a correspondence between a service instance name and a service type; the SRV records identify host names and port numbers corresponding to the service instance names; the TXT record identifies additional information provided by a certain service instance; the A record identifies the correspondence between the host name and the IPV 4.
Preferably, the remote control protocol adopted by the instrument includes Socket protocol and HiSLIP protocol, and the server acquires IP information of the instrument, connects to the instrument through the HiSLIP protocol or the Socket protocol, and controls the working state and the working mode of the instrument by sending SCPI commands.
Preferably, the system further includes a core switch and a router, the core switch is connected to the server and the instrument and meter respectively, and is used for data transmission between the server and the instrument and meter, and the router is connected to the core switch and also connected to an external firewall.
Preferably, the system further comprises an upper computer connected with the instrument and meter, the WPF technology is used for constructing and developing, data of the instrument and meter are collected in real time for analysis, and the state of the instrument and meter is displayed visually.
The method for realizing automatic discovery and automatic test aiming at the production line instrument equipment by utilizing the system is mainly characterized by comprising the following steps:
(1) starting up and powering on an instrument and meter, and starting up the multicast service of the MDNS;
(2) the instrument multicasts DNS type record information from a port through a UDP data packet;
(3) and the server sends a request to acquire the IP information of the instrument and meter which are in line with the local area network through the DNS-SD service.
This a device for producing line instrumentation and equipment and realizing automatic discovery and automated test, its key feature is, the device include:
a processor configured to execute computer-executable instructions;
the storage stores one or more computer-executable instructions which, when executed by the processor, implement the steps of the above-described method for automatic discovery and automated testing of in-line instrumentation.
The processor for realizing automatic discovery and automatic testing of the production line instrument equipment is mainly characterized in that the processor is configured to execute computer executable instructions, and the computer executable instructions are executed by the processor to realize the steps of the method for realizing automatic discovery and automatic testing of the production line instrument equipment.
The computer-readable storage medium is primarily characterized by a computer program stored thereon, which is executable by a processor for carrying out the steps of the above-described method for automatic discovery and automatic testing of in-line instrumentation.
By adopting the system, the method, the device, the processor and the computer readable storage medium for realizing automatic discovery and automatic test for the instrument and equipment in the production line, after a new instrument and equipment is connected into the system in the production line, the server can automatically discover the instrument and equipment, so that manual setting is avoided, the labor cost and the operation and maintenance cost are saved, the state information of each instrument and equipment in the whole system can be monitored, an instruction can be rapidly issued to control the whole automatic test flow, the time cost is saved, the efficiency is improved, and the efficiency of system data acquisition is improved.
Drawings
Fig. 1 is a network topology diagram of a system for implementing automatic discovery and automatic testing for production line instrumentation according to the present invention.
Fig. 2 is a schematic diagram of the request and response process of the MDNS and DNS-SD of the system for implementing automatic discovery and automatic testing for production line instrumentation according to the present invention.
Fig. 3 is a schematic structural diagram of a system for implementing automatic discovery and automatic testing for in-line instrumentation according to the present invention.
Fig. 4 is a schematic diagram of an overall architecture of remote control of an instrument based on SCPI commands for a system for implementing automatic discovery and automatic testing of production line instrument devices according to the present invention.
Detailed Description
In order that the technical contents of the present invention can be more clearly described, the present invention will be further described with reference to specific embodiments.
The system for realizing automatic discovery and automatic testing of the instrument equipment of the production line comprises a server and the instrument equipment, wherein the instrument equipment and the server are in the same local area network, the instrument equipment is provided with a dynamic distribution IP, the information of the instrument equipment is multicast in the local area network when the instrument equipment is started, the server searches and discovers the on-line instrument equipment in the local area network, and the IP information of the instrument equipment is obtained by sending a request through a DNS-SD service.
As a preferred embodiment of the present invention, the instrumentation turns on a multicast service through an MDNS service.
As a preferred embodiment of the present invention, the DNS-SD service uses 4 DNS type records in the request process, namely, a PTR record, an SRV record, a TXT record, and an a record, where the PTR record identifies the correspondence between the service instance name and the service type; the SRV records identify host names and port numbers corresponding to the service instance names; the TXT record identifies additional information provided by a certain service instance; the A record identifies the correspondence between the host name and the IPV 4.
As a preferred embodiment of the present invention, the remote control protocol adopted by the instrument includes a Socket protocol and a HiSLIP protocol, and the server acquires IP information of the instrument, connects to the instrument through the HiSLIP protocol or the Socket protocol, and controls a working state and a working mode of the instrument by sending an SCPI instruction.
As a preferred embodiment of the present invention, the system further includes a core switch and a router, the core switch is respectively connected to the server and the instrument and used for data transmission between the server and the instrument and meter, and the router is connected to the core switch and also connected to an external firewall.
As a preferred embodiment of the present invention, the system further includes an upper computer connected to the instrument, which is constructed and developed by WPF technology, collects data of the instrument in real time for analysis, and visually displays a state of the instrument.
The method for realizing automatic discovery and automatic test for production line instruments and equipment by utilizing the system comprises the following steps:
(1) starting up and powering on an instrument and meter, and starting up the multicast service of the MDNS;
(2) the instrument multicasts DNS type record information from a port through a UDP data packet;
(3) and the server sends a request to acquire the IP information of the instrument and meter which are in line with the local area network through the DNS-SD service.
The device for realizing automatic discovery and automatic test aiming at the production line instrument equipment comprises:
a processor configured to execute computer-executable instructions;
the storage stores one or more computer-executable instructions which, when executed by the processor, implement the steps of the above-described method for automatic discovery and automated testing of in-line instrumentation.
The processor for implementing automatic discovery and automatic testing for in-line instrumentation of the present invention is configured to execute computer executable instructions which, when executed by the processor, implement the steps of the above-described method for implementing automatic discovery and automatic testing for in-line instrumentation.
The computer-readable storage medium of the present invention, wherein a computer program is stored thereon, said computer program being executable by a processor for carrying out the steps of the above-described method for automatic discovery and automated testing of in-line instrumentation.
In the specific implementation mode of the invention, a mechanism for MDNS/DNS-SD local area network service discovery is provided, the message multicast in the local area network of the instrument is carried out, the multicast carries the equipment information of the instrument, and the remote server can discover the online instrument equipment in real time when searching for the equipment in the local area network. The invention autonomously realizes the instrument server of the HiSLIP protocol, and can efficiently receive and issue the instruction and acquire and upload the bottom data. The remote server can perform remote instrument control and state monitoring through SCPI instructions through a network communication protocol (HiSLIP/Socket) of the docking instrument. The upper computer program is developed by using a WPF technology, can acquire instrument data in real time for analysis, and can visually display the states of the instruments.
In a specific implementation process, it is first ensured that normal network communication can be performed between each terminal device and a server in a local area network environment, as shown in fig. 1. Fig. 1 is a network topology diagram of the whole system, all the devices and servers are in the same local area network, and the devices can set Dynamic (DHCP) allocation IP and broadcast their own information to the local area network when starting.
The upper computer of the application layer adopts WPF as a development framework, and the running condition of the whole system and the real-time analysis of bottom-layer collected data are visually displayed in the forms of charts and the like. When the instrument is powered on, the multicast service of the MDNS is started, the PTR, SRV and TXT information of the instrument is multicast out at the port 5353 through the UDP packet, and the remote server sends a request through the DNS-SD service to acquire the IP information of the instrument and the meter conforming to the current local area network, as shown in fig. 2.
Fig. 2 is a request response process of MDNS/DNS-SD in discovering a service, which obtains an instance service name through a request of PTR, obtains a hostname and a port number through an SRV request and a TXT request, and finally obtains IP information of a device through an a request. And finally, automatically discovering the equipment in the local area network.
The DNS-SD mainly uses 4 DNS Type records (Record Type) PTR, SRV, TXT, A:
PTR records: the correspondence between service instance names and service types is identified, typically for use when querying instances having the same service type.
SRV recording: identifying which host name and port number the service instance name corresponds to.
TXT recording: the additional information provided for a certain service instance is given in the form of a key/value.
Recording A: the correspondence between host name and IPV 4.
Fig. 3 is a diagram showing the software architecture of the whole system, and the design is carried out by adopting a layering concept. The method comprises an application layer, a transmission layer, a service layer, a data layer, a used database and a system operation environment. Fig. 4 is a diagram illustrating the overall architecture of remote control of an instrument based on SCPI commands, which includes three communication modes, VXI-11, HiSLIP, and Socket.
Common instrumentation remote control protocols include VXI-11, Socket, HiSLIP, which can more efficiently utilize any speed of LAN transmission than the conventional VXI-11 protocol. VXI-11 is built on the open network computing remote procedure call protocol ONC/RPC. Since HiSLIP communicates directly between VISA and TCP/IP layers, it eliminates the overhead and handshaking need for ONC/RPC messages. Messaging communications using HiSLIP are simplified and provide better performance, with the differences between the three as shown in table 1.
TABLE 1
The method comprises the steps that a HiSLIP server and a Socket server are independently realized at an instrument end, after IP information of the instrument is acquired, the instrument is connected through a HiSLIP protocol or a Socket protocol through an upper computer, the working state and the working mode of the instrument are controlled by sending an SCPI instruction, and high-speed acquisition and uploading of data can be carried out.
In the production environment of a production line, a newly added instrument is accessed into a local area network environment through a network, a system can automatically discover new instrument equipment and add the new instrument equipment into the whole test environment, a user can remotely set instrument parameters through a main server client to read the detection data of the instrument, and meanwhile, the system can cooperate with various instrument linkage work according to different test flows, so that the complex automatic test flow is completed.
For a specific implementation of this embodiment, reference may be made to the relevant description in the above embodiments, which is not described herein again.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by suitable instruction execution devices. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, and the corresponding program may be stored in a computer readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
By adopting the system, the method, the device, the processor and the computer readable storage medium for realizing automatic discovery and automatic test aiming at the instrument equipment of the production line, after a new instrument is connected into the system in the production line, the server can automatically discover the instrument, so that manual setting is avoided, the labor cost and the operation and maintenance cost are saved, the state information of each instrument in the whole system can be monitored, an instruction can be rapidly issued to control the whole automatic test flow, the time cost is saved, the efficiency is improved, and the efficiency of system data acquisition is improved.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (10)
1. A system for achieving automatic discovery and automatic testing aiming at instrument equipment in a production line is characterized by comprising a server and an instrument, wherein the instrument and the server are in the same local area network, the instrument is provided with a dynamic allocation IP, information of the instrument is multicast in the local area network when the instrument is started, the server searches and discovers the online instrument in the local area network, and the server sends a request to acquire the IP information of the instrument through a DNS-SD service.
2. The system of claim 1, wherein the instrumentation turns on multicast services through MDNS services.
3. The system for implementing auto-discovery and automated testing for in-line instrumentation according to claim 1, wherein said DNS-SD service employs 4 DNS type records in the request process, namely, PTR record, SRV record, TXT record and a record, said PTR record identifying the correspondence between service instance name and service type; the SRV records identify host names and port numbers corresponding to the service instance names; the TXT record identifies additional information provided by a certain service instance; the A record identifies the correspondence between the host name and the IPV 4.
4. The system for achieving automatic discovery and automatic testing of in-line instrumentation according to claim 1, wherein remote control protocols adopted by the instrumentation comprise Socket protocol and HiSLIP protocol, and the server, after acquiring IP information of the instrumentation, connects to the instrumentation through the HiSLIP protocol or Socket protocol and controls a working state and a working mode of the instrumentation by sending an SCPI command.
5. The system for realizing automatic discovery and automatic testing of production line instrumentation according to claim 1, further comprising a core switch and a router, wherein said core switch is connected to the server and the instrumentation and instrumentation respectively for data transmission between the server and the instrumentation and instrumentation, and said router is connected to the core switch and further connected to an external firewall.
6. The system for realizing automatic discovery and automatic testing of production line instrumentation according to claim 1, further comprising an upper computer connected to said instrumentation, constructed and developed by WPF technology, collecting data of the instrumentation in real time for analysis, and visually displaying status of the instrumentation.
7. A method for implementing automatic discovery and automatic testing of production line instrumentation based on the system of claim 1, the method comprising the steps of:
(1) starting up and powering on an instrument and meter, and starting up the multicast service of the MDNS;
(2) the instrument multicasts DNS type record information from a port through a UDP data packet;
(3) and the server sends a request to acquire the IP information of the instrument and meter which are in line with the local area network through the DNS-SD service.
8. An apparatus for implementing automatic discovery and automatic testing for production line instrumentation, the apparatus comprising:
a processor configured to execute computer-executable instructions;
a memory storing one or more computer-executable instructions that, when executed by the processor, perform the steps of any of claim 7 of a method of performing automatic discovery and automated testing for in-line instrumentation.
9. A processor for implementing automatic discovery and automated testing for in-line instrumentation, the processor configured to execute computer-executable instructions that, when executed by the processor, perform the steps of the method of implementing automatic discovery and automated testing for in-line instrumentation of any one of claims 7.
10. A computer-readable storage medium, having stored thereon a computer program executable by a processor to perform the steps of the method of any one of claim 7 for automatic discovery and automated testing of in-line instrumentation.
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