CN116185744B - GMDSS data interface detection system - Google Patents
GMDSS data interface detection system Download PDFInfo
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- CN116185744B CN116185744B CN202310456720.8A CN202310456720A CN116185744B CN 116185744 B CN116185744 B CN 116185744B CN 202310456720 A CN202310456720 A CN 202310456720A CN 116185744 B CN116185744 B CN 116185744B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
- G06F11/221—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test buses, lines or interfaces, e.g. stuck-at or open line faults
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2273—Test methods
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Abstract
The invention discloses a GMDSS data interface detection system. The system comprises a signal switching terminal and a detection terminal, wherein the signal switching terminal comprises an interface unit for receiving signals output by GMDSS equipment, and the detection unit detects whether each interface is inserted into a signal wire currently and sends out corresponding detection signals; the first processor receives the detection signals sent by the detection units and sets the priority of each interface in the interface units; the first processor controls the switch module to be closed through set logic, the first processor sends the information of the switch module which is controlled to be closed to the second processor, so that the second processor can determine the type of the current input signal, signal conversion is achieved, and an output signal is sent to the detection terminal for detection and analysis. The invention realizes detection and analysis of different equipment with various signal interfaces, ensures that only one GMDSS equipment is communicated with the detection terminal at the same time for detection, and has simple operation and convenient use.
Description
Technical Field
The invention relates to the technical field of GMDSS data interface detection systems, in particular to a GMDSS data interface detection system.
Background
The GMDSS is a global maritime distress and safety system, and is a global communication search and rescue network established by the international maritime organization for improving maritime distress and safety communication by using a modern communication technology. The GMDSS has a plurality of devices, the control system of the GMDSS has complex software and hardware structures and functional services, and the device manufacturer can often close the data interface protocol of the device for the benefit of the device manufacturer, thereby having serious influence on the standardization of the industry and the use convenience of clients. In order to reduce the influence, the continuous healthy development of the industry is promoted, a detection means is needed in the industry, and when the GMDSS related equipment is accessed, the equipment interface is detected, so that the data interface is prevented from not meeting the specified requirements. The GMDSS system has various related devices, including high frequency transmitter, intermediate frequency transmitter, short wave receiver, DSC modem, weather facsimile modulator, navtex modulator, etc. and various interfaces, so that a detection system meeting the requirements of GMDSS system is needed.
Disclosure of Invention
The invention aims to provide a GMDSS data interface detection system aiming at the defects existing in the prior art.
In order to achieve the above object, the present invention provides a GMDSS data interface detection system, including a signal switching terminal and a detection terminal, the signal switching terminal includes:
the interface unit comprises a plurality of interfaces with different types and is used for inserting signal wires of the GMDSS equipment to receive signals output by the GMDSS equipment and transmitting detection signals transmitted by the detection terminal to the GMDSS equipment;
the detection unit is used for detecting whether each interface is inserted into a signal wire currently and sending out a corresponding detection signal;
the first processor is connected with the detection unit, is used for receiving detection signals sent by the detection unit and setting the priority of each interface in the interface unit;
the first processor is used for acquiring the set priority of each interface and controlling the switch module connected with the interface inserted with the signal wire with the highest priority to be closed when detecting that more than two interfaces are inserted with the signal wire and the sequence is unable to be distinguished;
the second processor is respectively connected with the switch modules and the first processor, and the first processor is used for sending the information of the switch module which is controlled to be closed to the second processor so as to enable the second processor to determine the type of the current input signal, thereby realizing the type conversion of the signal;
the first communication interface is respectively connected with the second processor and the detection terminal and is used for sending the output signal converted by the second processor to the detection terminal and receiving the detection signal sent by the detection terminal;
the detection terminal comprises:
the second communication interface is used for receiving the output signal sent by the first communication interface and sending a detection signal to the signal switching terminal;
the third processor is connected with the second communication interface and used for controlling the second communication interface to send detection signals and detecting and analyzing the received output signals;
and the man-machine interaction module is connected with the third processor and used for realizing man-machine interaction and displaying a detection result.
Further, the interface unit comprises a network interface, an audio interface and a serial interface.
Further, the detection unit comprises a switch detection element arranged at one side of the network port and the serial port and an insertion detection circuit integrated in the audio interface.
Further, the first processor is further connected with a switching button, the switching button is used for sending a switching signal, and after receiving the switching signal, the first processor controls the switch module which is closed at present to be opened, and controls the switch module which is connected with the interface and has the highest priority and is inserted into the signal line to be closed.
Further, an indicator light is respectively arranged at one side of each interface, and when the first processor controls the switch module connected with one interface to be closed, the indicator light at one side of the interface is controlled to be turned on.
Further, the audio interface is a 3.5mm audio interface.
Further, the first processor and the second processor are both single-chip computers.
Further, the type of the switch module is tmux1136dgsr.
The beneficial effects are that: according to the invention, by arranging the interfaces, each interface can automatically detect whether a signal wire is connected or not, and feeds back detection signals to the first processor, so that the first processor controls the corresponding switch module to be closed through set logic, signals input by the interfaces are input to the second processor, signal conversion between the GMDSS equipment and the detection equipment is realized by the second processor, detection analysis is realized on different equipment of various signal interfaces, and the fact that only one GMDSS equipment is connected with the detection terminal at the same moment is ensured to be detected, so that the operation is simple and the use is convenient.
Drawings
FIG. 1 is a schematic diagram of a GMDSS data interface detection system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of the architecture of a GMDSS service system;
fig. 3 is a schematic flow chart of a detecting terminal according to an embodiment of the present invention when detecting GMDSS devices.
Detailed Description
The invention will be further illustrated by the following drawings and specific examples, which are carried out on the basis of the technical solutions of the invention, it being understood that these examples are only intended to illustrate the invention and are not intended to limit the scope of the invention.
As shown in fig. 1, an embodiment of the present invention provides a GMDSS data interface detection system, which is characterized by comprising a signal switching terminal 1 and a detection terminal 2, wherein the signal switching terminal 1 includes an interface unit, a detection unit, a first processor 101, a plurality of switch modules 102, a second processor 103 and a first communication interface 104.
The interface unit comprises a plurality of interfaces with different types, and the interfaces are used for inserting signal wires of the GMDSS equipment to receive signals output by the GMDSS equipment and sending detection signals sent by the detection terminal 2 to the GMDSS equipment. GMDSS devices typically include high frequency transmitters, intermediate frequency transmitters, short wave receivers, DSC modems, weather fax modulators, navtex modulators, single sideband voice devices, etc., and when these devices are serviced, the signal lines of a device or devices are plugged into the corresponding type of interface. Common interfaces include, but are not limited to, a network interface 106, an audio interface 107, and a serial interface 108, which may be changed according to the types of signal lines of the above devices. The audio interface 106 preferably employs a 3.5mm audio interface.
The detection unit is used for detecting whether each interface is inserted into the signal line currently and sending out corresponding detection signals. Specifically, the detection unit preferably includes two types of switch detection elements 109 and an insertion detection circuit 110, wherein the switch detection elements 109 are disposed outside the network port interface 106 and the serial port interface 108, and the insertion detection circuit 110 is integrated in the audio interface 107. The switch detection element 109 and the insertion detection circuit 110 can each emit a high-low level signal as a detection signal. The switch detecting element 109 preferably adopts two infrared correlation switches, and the transmitting part and the receiving part of the two infrared correlation switches can be respectively arranged at the upper side, the lower side, the left side and the right side of the network port interface 106 and the serial port interface 108, when no signal wire is inserted into the signal wire, the infrared rays emitted by the transmitting part are received by the receiving part, when the signal wire is inserted into the signal wire, the signal wire is arranged between the transmitting part and the receiving part, infrared signals are blocked, and whether the signal wire is inserted into the signal wire can be sensed by the receiving part.
The first processor 101 may be a single-chip microcomputer, and the first processor 101 is connected to the detection unit to receive the detection signal sent by the detection unit, and set the priority of each interface in the interface unit.
The type of the plurality of switch modules 102 is preferably tmux1136dgsr, the plurality of switch modules 102 are used for being connected with a plurality of interfaces in the interface unit one by one, the plurality of switch modules 102 are also connected with the first processor 101, and when the first processor 101 detects that only one signal wire in the current interface unit is inserted, the first processor 101 controls the switch modules 102 connected with the interfaces to be closed. If the first processor 101 has a signal line inserted into another interface while controlling the switch module 102 to be closed, the first processor 101 does not control the switch module 102 connected to the interface inserted with the signal line to be closed. If the first processor 101 detects that more than two interfaces are currently inserted into the signal lines and cannot distinguish the sequence, for example, a plurality of signal lines are inserted into corresponding interfaces before starting up, the priority of each set interface is obtained, and the switch module 102 connected with the interface inserted with the signal line with the highest priority is controlled to be closed, so that the uniqueness of the signal passing through the switch module 102 is ensured, the simultaneous input of multiple signals is avoided, and waveform analysis cannot be normally performed.
The second processor 103 may also adopt a single chip microcomputer, and be connected with the plurality of switch modules 102 and the first processor 101 respectively, where the first processor 101 is configured to send information of the switch module 102 that is controlled to be closed by the first processor to the second processor 103, so that the second processor 103 determines the type of the current input signal, thereby implementing type conversion of the signal. Specifically, for example, the current first processor 101 controls the connection of the switch module 102 connected to the network port interface 106, which indicates that the current input signal is a network port signal, and after the first processor 101 feeds back the information to the second processor 103, the second processor 103 can decode the input signal according to the network port protocol and then encode the decoded signal into an output signal. Meanwhile, when the second processor 103 receives the detection signal, the detection signal is encoded into a network port protocol signal, and the network port protocol signal is sent to the GMDSS device through the network port interface 106.
The first communication interface 104 is connected to the second processor 103 and the detection terminal 2, and the first communication interface 104 is configured to send the output signal converted by the second processor 103 to the detection terminal 2, and receive the detection signal sent by the detection terminal 2.
The detection terminal 2 in the embodiment of the present invention includes a second communication interface 201, a third processor 202, and a man-machine interaction module 203, where the standard of the second communication interface 201 is the same as that of the first communication interface 104, for example, a BNC interface is adopted. The second communication interface 201 is configured to receive the output signal sent by the first communication interface 104, and send a detection signal to the signal switching terminal 1. The third processor 202 is connected to the second communication interface 201, and is configured to control the second communication interface 201 to send a detection signal, and perform detection analysis on the received output signal to determine whether the signal of the GMDSS device meets the requirement. The man-machine interaction module 203 is connected to the third processor 202, and is configured to implement man-machine interaction and display a detection result. It should be noted that, the third processor 202 performs data interaction with the GMDSS device by using a set detection flow, so as to achieve the purpose of interface detection, and this part is the prior art and is not described herein.
As a preferred embodiment, the first processor 101 is further connected with a switch button 105, when a plurality of signal lines are inserted into the interface unit, the switch button 105 is pressed to send a switch signal, and after receiving the switch signal, the first processor 101 controls the switch module 102 which is currently closed to be opened, and controls the switch module 102 which is connected with the interface with the highest priority of the remaining inserted signal lines to be closed, so that manual switching of signal input is realized, and each time the switch is pressed, one switch is performed. In order to facilitate the maintainer to clearly know which interface the currently-inputted signal comes from, it is also preferable to set an indicator lamp on one side of each interface, and when the first processor 101 controls the switch module 102 connected with one interface to be closed, the indicator lamp on one side of the interface is controlled to be turned on.
Referring to fig. 2, fig. 2 shows an overall component of a GMDSS service system, in which a control interface interaction flow of a shore device layer is shown in fig. 3, and 1, a detection terminal sends a connection request instruction; 2. detecting an identity authentication function of a terminal verification interface; 3. the detection terminal tests the related function service interface by sending a request/data instruction; 4. and the detection terminal returns data and state through the equipment to be tested read in real time, and whether the system interface meets the standard requirement is judged. In addition, after the detection terminal successfully establishes the interface connection, the detection terminal needs to initiate identity verification information, after the verification is successful, the connection party can take effect, or else the equipment to be detected actively disconnects the connection; the equipment to be detected responds to the instruction sent by each detection terminal;
the equipment to be detected actively reports information or data, such as reporting equipment state, pushing and receiving messages and the like; when the detection terminal does not need to be connected, the connection is directly disconnected.
The detection requirements of each equipment interface are specifically as follows:
(1) DSC modem interface detection requirements
Navtex modulator interface detection requirements
Meteorological fax modulator interface detection requirements
Single sideband speech equipment interface detection requirements
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that other parts not specifically described are within the prior art or common general knowledge to a person of ordinary skill in the art. Modifications and alterations may be made without departing from the principles of this invention, and such modifications and alterations should also be considered as being within the scope of the invention.
Claims (8)
1. The GMDSS data interface detection system is characterized by comprising a signal switching terminal and a detection terminal, wherein the signal switching terminal comprises:
the interface unit comprises a plurality of interfaces with different types and is used for inserting signal wires of the GMDSS equipment to receive signals output by the GMDSS equipment and transmitting detection signals transmitted by the detection terminal to the GMDSS equipment;
the detection unit is used for detecting whether each interface is inserted into a signal wire currently and sending out a corresponding detection signal;
the first processor is connected with the detection unit, is used for receiving detection signals sent by the detection unit and setting the priority of each interface in the interface unit;
the first processor is used for acquiring the set priority of each interface and controlling the switch module connected with the interface inserted with the signal wire with the highest priority to be closed when detecting that more than two interfaces are inserted with the signal wire and the sequence is unable to be distinguished;
the second processor is respectively connected with the switch modules and the first processor, and the first processor is used for sending the information of the switch module which is controlled to be closed to the second processor so as to enable the second processor to determine the type of the current input signal, thereby realizing the type conversion of the signal;
the first communication interface is respectively connected with the second processor and the detection terminal and is used for sending the output signal converted by the second processor to the detection terminal and receiving the detection signal sent by the detection terminal;
the detection terminal comprises:
the second communication interface is used for receiving the output signal sent by the first communication interface and sending a detection signal to the signal switching terminal;
the third processor is connected with the second communication interface and used for controlling the second communication interface to send detection signals and detecting and analyzing the received output signals;
and the man-machine interaction module is connected with the third processor and used for realizing man-machine interaction and displaying a detection result.
2. The GMDSS data interface detection system according to claim 1, wherein the interface unit comprises a network interface, an audio interface and a serial interface.
3. The GMDSS data interface detection system according to claim 2, wherein the detection unit includes a switch detection element provided at one side of the network port and serial port and an insertion detection circuit integrated within the audio interface.
4. The GMDSS data interface detection system according to claim 1, wherein the first processor is further connected to a switch button, the switch button is configured to send a switch signal, and the first processor, upon receiving the switch signal, controls the currently closed switch module to be opened, and controls the switch module of the interface connection with the highest priority of the remaining add-in signal lines to be closed.
5. The GMDSS data interface detection system according to claim 4, wherein an indicator light is provided on one side of each interface, and the first processor controls the on of the indicator light on one side of the interface when the switch module connected to the interface is turned on.
6. The GMDSS data interface detection system according to claim 2, wherein the audio interface is a 3.5mm audio interface.
7. The GMDSS data interface detection system according to claim 1, wherein the first processor and the second processor are both single-chip computers.
8. The GMDSS data interface detection system according to claim 1, wherein the switch module is model tmux1136dgsr.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310456720.8A CN116185744B (en) | 2023-04-26 | 2023-04-26 | GMDSS data interface detection system |
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| CN202310456720.8A CN116185744B (en) | 2023-04-26 | 2023-04-26 | GMDSS data interface detection system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010090597A1 (en) * | 2009-02-06 | 2010-08-12 | V.S. Marketing & Engineering Pte Ltd | System and method for interfacing multimedia signals |
| CN103853609A (en) * | 2012-12-03 | 2014-06-11 | 联想(北京)有限公司 | Signal processing method and device |
| CN104062530A (en) * | 2014-07-11 | 2014-09-24 | 湖南长城信息金融设备有限责任公司 | Mobile terminal hardware fault detecting device and method |
| CN111741092A (en) * | 2020-06-11 | 2020-10-02 | 湖南中大检测技术集团有限公司 | Acquisition system, integrated terminal and detection system |
| CN215120525U (en) * | 2021-03-16 | 2021-12-10 | 深圳市恒晨电器有限公司 | Multi-interface insertion detection starting and power supply PCB circuit and electronic equipment |
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- 2023-04-26 CN CN202310456720.8A patent/CN116185744B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010090597A1 (en) * | 2009-02-06 | 2010-08-12 | V.S. Marketing & Engineering Pte Ltd | System and method for interfacing multimedia signals |
| CN103853609A (en) * | 2012-12-03 | 2014-06-11 | 联想(北京)有限公司 | Signal processing method and device |
| CN104062530A (en) * | 2014-07-11 | 2014-09-24 | 湖南长城信息金融设备有限责任公司 | Mobile terminal hardware fault detecting device and method |
| CN111741092A (en) * | 2020-06-11 | 2020-10-02 | 湖南中大检测技术集团有限公司 | Acquisition system, integrated terminal and detection system |
| CN215120525U (en) * | 2021-03-16 | 2021-12-10 | 深圳市恒晨电器有限公司 | Multi-interface insertion detection starting and power supply PCB circuit and electronic equipment |
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