GPIB interface to wireless Wi-Fi transmission device

Abstract

The invention discloses a transmission device for converting a GPIB (General Purpose Interface Bus) interface into wireless Wi-Fi (Wireless Fidelity). The transmission device comprises a GPIB interface module, a wireless Wi-Fi module and a wireless Wi-Fi module, the ZYNQ control module is used for performing data analysis and processing on the GPIB electric signal, converting the GPIB electric signal into a digital signal through a signal conversion module and encoding the digital signal into a format suitable for Wi-Fi transmission; the Wi-Fi transmission module is used for wirelessly transmitting and receiving data through a Wi-Fi network; and the control processing module is used for managing data streams and processing problems of communication synchronization and data integrity. Data transmitted by a GPIB bus interface are extracted and processed by adopting a wireless Wi-Fi mode, and remote transmission is carried out by using Wi-Fi through a wireless module, so that wireless transmission of GPIB signals is realized. The characteristics of high compatibility and real-time performance of a GPIB interface are maintained, the defects of short transmission distance and complex wiring of a traditional GPIB are overcome, the wireless and flexible requirements of modern laboratories and industrial environments are met, and the use portability is greatly improved.

Description

Technical Field

[0001] The present invention relates to a photoelectric conversion wireless Wi-Fi transmission technology, and in particular to a GPIB interface to wireless Wi-Fi transmission device. Background Art

[0002] At present, GPIB (General Purpose Interface Bus) is a communication standard interface widely used in scientific laboratories, industrial automation and test and measurement equipment. Since its introduction in the 1960s, GPIB has become a standard interface for many electronic test instruments due to its reliability and high compatibility, used for data exchange and control between devices. However, with the development of modern technology and the diversification of application needs, the inherent defects of the GPIB interface have gradually emerged, especially in terms of transmission distance and anti-interference ability.

[0003] This interface has the following four characteristics:

[0004] The interface has low data transmission latency;

[0005] The interface uses a bidirectional asynchronous bus with a bus length of no more than 20 meters;

[0006] This interface can interconnect up to 15 devices to form an automatic test system;

[0007] This interface is suitable for devices with slight electrical interference.

[0008] It can be seen that the transmission distance of the GPIB interface is limited, and it usually only supports stable transmission within a few meters. And with the continuous expansion of the deployment range of instruments and equipment and the complexity of test scenarios, traditional GPIB cables can no longer meet the needs of long-distance transmission and high-precision test scenarios.

[0009] Existing technology and defects:

[0010] The transmission distance of GPIB interface is usually short and the wiring is complicated, which makes it difficult to meet the wireless and flexibility requirements of modern equipment. In addition, GPIB cable is also susceptible to electromagnetic interference, especially in industrial environments, where the presence of electromagnetic noise may lead to a significant decrease in the stability and accuracy of data transmission. These problems are particularly prominent in test and measurement situations that require high precision and reliability.

[0011] Most existing solutions rely on extending cables, but they still cannot effectively solve the problem of limited wiring. The extended GPIB cable can increase the transmission distance to a certain extent. However, the longer the length of the GPIB cable will increase signal attenuation, affecting the reliability of data transmission. In addition, the longer the cable, the more susceptible it is to electromagnetic interference, resulting in reduced stability of data transmission. This method has high requirements for the environment and cannot adapt to complex industrial sites. In addition, in scenarios where multiple devices operate in parallel, traditional solutions will make cable management very complicated. Therefore, it is necessary to develop a solution that can greatly improve the layout flexibility and installation convenience of equipment.

[0012] In view of this, the present invention is proposed. Summary of the invention

[0013] The purpose of the present invention is to provide a GPIB interface to wireless Wi-Fi transmission device to solve the above technical problems existing in the prior art.

[0014] The objective of the present invention is achieved through the following technical solutions:

[0015] The GPIB interface to wireless Wi-Fi transmission device of the present invention comprises:

[0016] GPIB interface module: used to receive and output GPIB electrical signals;

[0017] ZYNQ control module: used to parse and process GPIB electrical signals, convert them into digital signals through the signal conversion module and encode them into a format suitable for Wi-Fi transmission;

[0018] Wi-Fi transmission module: used for wireless transmission and reception of data through Wi-Fi network;

[0019] Control processing module: used to manage data flow, handle communication synchronization and data integrity issues.

[0020] Compared with the prior art, the GPIB interface to wireless Wi-Fi transmission device provided by the present invention uses wireless Wi-Fi to extract and process the data transmitted by the GPIB bus interface, uses Wi-Fi for long-distance transmission through a wireless module, and then restores the data in the Wi-Fi to the original data, thereby realizing the wireless transmission of GPIB signals. While maintaining the high compatibility and real-time characteristics of the GPIB interface, this device overcomes the defects of the traditional GPIB transmission distance and complex wiring, adapts to the needs of modern laboratories and industrial environments for wireless and flexibility, and greatly improves the portability of use. It solves the problems of the large number of GPIB interface bus harnesses, resulting in hard harnesses and inconvenience in debugging and wiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a GPIB interface to wireless Wi-Fi transmission device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments, which does not constitute a limitation of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the present invention.

[0023] First, the terms that may be used in this article are explained as follows:

[0024] The term “and / or” means that either or both of them can be realized at the same time. For example, X and / or Y means both “X” or “Y” and “X and Y”.

[0025] The terms "include", "comprises", "contains", "has" or other descriptions with similar semantics should be interpreted as non-exclusive inclusion. For example, including certain technical feature elements (such as raw materials, components, ingredients, carriers, dosage forms, materials, dimensions, parts, components, mechanisms, devices, steps, procedures, methods, reaction conditions, processing conditions, parameters, algorithms, signals, data, products or products, etc.) should be interpreted as including not only certain technical feature elements explicitly listed, but also other technical feature elements known in the art that are not explicitly listed.

[0026] The term "consisting of..." means excluding any technical feature elements not explicitly listed. If this term is used in a claim, it will make the claim closed, so that it does not contain technical feature elements other than the technical feature elements explicitly listed, except for the conventional impurities related to them. If this term only appears in a clause of a claim, it only limits the elements explicitly listed in the clause, and the elements recorded in other clauses are not excluded from the overall claim.

[0027] The contents not described in detail in the examples of the present invention belong to the prior art known to professionals in the field. If no specific conditions are specified in the examples of the present invention, the conditions are carried out according to the conventional conditions in the field or the conditions recommended by the manufacturer. If the manufacturer is not specified in the reagents or instruments used in the examples of the present invention, they are all conventional products that can be purchased commercially.

[0028] The GPIB interface to wireless Wi-Fi transmission device of the present invention comprises:

[0029] GPIB interface module: used to receive and output GPIB electrical signals;

[0030] ZYNQ control module: used to parse and process GPIB electrical signals, convert them into digital signals through the signal conversion module and encode them into a format suitable for Wi-Fi transmission;

[0031] Wi-Fi transmission module: used for wireless transmission and reception of data through Wi-Fi network;

[0032] Control processing module: used to manage data flow, handle communication synchronization and data integrity issues.

[0033] After the GPIB interface module receives parallel GPIB signals from the device, the signal conversion module converts these signals into digital signals;

[0034] These signals are then packaged and encoded according to the Wi-Fi transmission protocol to form a frame structure suitable for wireless transmission;

[0035] The packaged digital signal undergoes protocol conversion through the Wi-Fi adapter in the signal conversion module to make it conform to standard Wi-Fi transmission requirements;

[0036] The above process includes the generation of data frames, channel selection and the addition of error detection codes to ensure the integrity of the data.

[0037] The Wi-Fi communication module sends the processed digital signal to the target device or network node via a Wi-Fi transmitter;

[0038] The transmitter selects the appropriate channel and transmission rate through configuration to ensure stable signal transmission;

[0039] The target device or apparatus receives the wireless signal through the Wi-Fi receiver and passes it to the signal conversion module for decoding and restoration;

[0040] The Wi-Fi communication module also supports two-way communication, which can send GPIB signals and receive signals from the network, and convert them into GPIB signals and output them to the device, completing complete data exchange.

[0041] The control processing module is responsible for managing and coordinating the work of each module, including:

[0042] In the scenario where multiple devices communicate in parallel, the control processing module is responsible for managing the data flow of each device to ensure that the signals do not conflict;

[0043] Deal with delay and jitter issues in Wi-Fi transmission to ensure real-time data;

[0044] Considering that Wi-Fi transmission is asynchronous in nature, the control processing module needs to handle the synchronization issues in communication to ensure that the signals at the sending and receiving ends match;

[0045] The control processing module also has built-in error detection and correction functions, which ensure the accuracy of the data by verifying the received data and re-requesting data transmission when necessary;

[0046] Through this control processing module, users can realize wireless operation of GPIB devices without laying complex cables, which can be used in distributed measurement systems, remote monitoring systems and mobile test platforms.

[0047] In summary, the GPIB interface to wireless Wi-Fi transmission device of the embodiment of the present invention uses wireless Wi-Fi to extract and process the data transmitted by the GPIB bus interface, uses Wi-Fi for long-distance transmission through a wireless module, and then restores the data in the Wi-Fi to the original data, thereby realizing the wireless transmission of GPIB signals. While maintaining the high compatibility and real-time characteristics of the GPIB interface, this device overcomes the defects of the traditional GPIB transmission distance and complex wiring, adapts to the needs of modern laboratories and industrial environments for wireless and flexibility, and greatly improves the portability of use. It solves the problems of the large number of GPIB interface bus harnesses, resulting in hard harnesses and inconvenience in debugging and wiring.

[0048] The GPIB interface usually uses parallel communication electrical signals to transmit data. The signal conversion module in the present invention first converts the electrical signal corresponding to the data transmitted by the GPIB bus into a digital signal, and then encodes it to adapt to the Wi-Fi transmission protocol. The converted digital signal is sent to the receiving end through the Wi-Fi module to achieve wireless transmission. After receiving the signal, the Wi-Fi module at the receiving end decodes and converts it to restore the data originally transmitted in the GPIB for use by the test equipment.

[0049] Different from traditional solutions, the advantage of Wi-Fi communication is that it supports portable parallel communication of multiple devices. The device of the present invention supports multiple GPIB devices to transmit data via Wi-Fi, and the control processing module is responsible for managing the communication sequence and data synchronization of multiple devices to ensure the integrity and real-time performance of the data. In addition, compared with the distance limitation of traditional GPIB cable transmission, Wi-Fi transmission can cover a wider range while eliminating the complexity of wiring, greatly improving the deployment flexibility of the equipment and reducing the expensive cost of GPIB data cables.

[0050] In order to more clearly demonstrate the technical solution and technical effects provided by the present invention, the embodiments of the present invention are described in detail with specific embodiments below.

[0051] Example 1

[0052] like Figure 1 As shown, the main components of the GPIB interface to Wi-Fi transmission device of the present invention include:

[0053] GPIB interface module: used to receive and output GPIB electrical signals.

[0054] ZYNQ control module: used to parse and process GPIB electrical signals, convert them into digital signals and encode them into a format suitable for Wi-Fi transmission.

[0055] Wi-Fi transmission module: used for wireless transmission and reception of data through Wi-Fi network.

[0056] Control processing module: used to manage data flow, handle communication synchronization and data integrity issues.

[0057] After the GPIB interface module receives the parallel GPIB signals from the device, the signal conversion module converts these signals into digital signals. These signals are then packaged and encoded according to the Wi-Fi transmission protocol to form a frame structure suitable for wireless transmission. The packaged digital signals are converted to the protocol by the Wi-Fi adapter in the signal conversion module to meet the standard Wi-Fi transmission requirements. This process includes the generation of data frames, channel selection, and the addition of error detection codes to ensure data integrity.

[0058] The Wi-Fi communication module sends the processed digital signal to the target device or network node through the Wi-Fi transmitter. The transmitter can select the appropriate channel and transmission rate through configuration to ensure stable signal transmission. The target device or device receives the wireless signal through the Wi-Fi receiver and passes it to the signal conversion module for decoding and restoration. In addition, the Wi-Fi module also supports two-way communication, that is, it can not only send GPIB signals, but also receive signals from the network and convert them into GPIB signals to output to the device, completing complete data exchange.

[0059] The control processing module is the core of the entire device, responsible for managing and coordinating the work of each module: in the scenario of multiple devices communicating in parallel, the control processing module is responsible for managing the data flow of each device to ensure that the signals do not conflict. It also handles the delay and jitter problems in Wi-Fi transmission to ensure the real-time nature of the data. Considering that Wi-Fi transmission is asynchronous in nature, the control processing module needs to handle the synchronization problems in communication to ensure that the signals at the sending and receiving ends match. In addition to the above functions, the control processing module also has built-in error detection and correction functions, which ensures the accuracy of the data by verifying the received data and re-requesting data transmission when necessary. Through this device, users can realize the wireless operation of GPIB devices without laying complex cables, which greatly improves the flexibility of the system and is suitable for distributed measurement systems, remote monitoring systems and mobile test platforms.

[0060] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims. The information disclosed in the background technology section of this article is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or in any form that the information constitutes prior art known to those skilled in the art.

Claims

1. A GPIB interface to wireless Wi-Fi transmission device, characterized in that: include: GPIB interface module: used to receive and output GPIB electrical signals; ZYNQ control module: used to parse and process GPIB electrical signals, convert them into digital signals through the signal conversion module and encode them into a format suitable for Wi-Fi transmission; Wi-Fi transmission module: used for wireless transmission and reception of data through Wi-Fi network; Control processing module: used to manage data flow, handle communication synchronization and data integrity issues.

2. The GPIB interface to wireless Wi-Fi transmission device according to claim 1, characterized in that: After the GPIB interface module receives parallel GPIB signals from the device, the signal conversion module converts these signals into digital signals; These signals are then packaged and encoded according to the Wi-Fi transmission protocol to form a frame structure suitable for wireless transmission; The packaged digital signal undergoes protocol conversion through the Wi-Fi adapter in the signal conversion module to make it conform to standard Wi-Fi transmission requirements; The above process includes the generation of data frames, channel selection and the addition of error detection codes to ensure the integrity of the data.

3. The GPIB interface to wireless Wi-Fi transmission device according to claim 2, characterized in that: The Wi-Fi communication module sends the processed digital signal to the target device or network node via a Wi-Fi transmitter; The transmitter selects the appropriate channel and transmission rate through configuration to ensure stable signal transmission; The target device or apparatus receives the wireless signal through the Wi-Fi receiver and passes it to the signal conversion module for decoding and restoration; The Wi-Fi communication module also supports two-way communication, which can send GPIB signals and receive signals from the network, and convert them into GPIB signals and output them to the device, completing complete data exchange.

4. The GPIB interface to wireless Wi-Fi transmission device according to claim 3, characterized in that: The control processing module is responsible for managing and coordinating the work of each module, including: In the scenario where multiple devices communicate in parallel, the control processing module is responsible for managing the data flow of each device to ensure that the signals do not conflict; Deal with delay and jitter issues in Wi-Fi transmission to ensure real-time data; Considering that Wi-Fi transmission is asynchronous in nature, the control processing module needs to handle the synchronization issues in communication to ensure that the signals at the sending and receiving ends match; The control processing module also has built-in error detection and correction functions, which ensure the accuracy of the data by verifying the received data and re-requesting data transmission when necessary; Through this control processing module, users can realize wireless operation of GPIB devices without laying complex cables, which can be used in distributed measurement systems, remote monitoring systems and mobile test platforms.

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