CN220754834U - EMUs broadcast system detection device - Google Patents
EMUs broadcast system detection device Download PDFInfo
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- CN220754834U CN220754834U CN202322373112.9U CN202322373112U CN220754834U CN 220754834 U CN220754834 U CN 220754834U CN 202322373112 U CN202322373112 U CN 202322373112U CN 220754834 U CN220754834 U CN 220754834U
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- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 241000271559 Dromaiidae Species 0.000 title description 9
- 238000012360 testing method Methods 0.000 claims abstract description 126
- 230000005236 sound signal Effects 0.000 claims abstract description 45
- 230000003993 interaction Effects 0.000 claims description 34
- 230000003321 amplification Effects 0.000 claims description 12
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 12
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 27
- 230000008439 repair process Effects 0.000 abstract description 5
- 238000012795 verification Methods 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
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- 101100346177 Arabidopsis thaliana MORC5 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model discloses a motor train unit broadcasting system detection device, and relates to a batch detection device for off-site motor train unit equipment. The system aims to overcome the problems that the verification of repair quality after batch maintenance of components of a broadcasting system of a motor train unit can only be carried out by installing the components in a passenger room of the motor train unit, and time and labor are wasted, and the system comprises a test host, a decoding unit and N test fixing units; the test host is capable of generating an audio signal; the audio signal output end of the test host is electrically connected with the audio signal input end of the decoding unit; the test fixing unit comprises an audio test card slot and an audio signal plug; the audio signal plug is positioned in the audio test card slot; the audio signal plug is electrically connected with the decoding audio signal output end of the decoding unit; the audio test card slot is used for fixing the to-be-detected call device or the to-be-detected audio control/power amplifier unit, and inputting the decoded audio signal of the decoding unit to the to-be-detected call device or the to-be-detected audio control/power amplifier unit through the audio signal plug.
Description
Technical Field
The utility model relates to a batch detection device for off-site motor train unit equipment.
Background
The motor train unit broadcasting system comprises an audio broadcasting device and a text broadcasting device, can provide various train running information, advertisements and the like for passengers, and ensures the traveling experience and income increase of the passengers.
However, after the components of the broadcasting system of the motor train unit are maintained in batches, simulation function experiments and ageing fatigue experiments cannot be carried out on a maintenance site, the repair quality can be verified, and only the experiments can be carried out by being installed in a passenger room of the motor train unit, if the repair quality of accessories does not reach the standard, the repair is required to be removed, and the maintenance condition is not provided on the passenger room site of the motor train unit, and special equipment is required to replace the components, so that time and labor are wasted.
Disclosure of Invention
The utility model aims to overcome the problem that the verification and repair quality can only be tested by being installed in a passenger room of a motor train unit after the parts of the motor train unit broadcasting system are repaired in batches, and the time and the labor are wasted, and provides a motor train unit broadcasting system detection device.
The utility model relates to a motor train unit broadcasting system detection device which comprises a test host, a decoding unit and N test fixing units, wherein the test host is used for receiving a signal from a motor train unit; n is a positive integer greater than or equal to 2;
the test host is capable of generating an audio signal; the audio signal output end of the test host is electrically connected with the audio signal input end of the decoding unit;
the test fixing unit comprises an audio test card slot and an audio signal plug;
the audio signal plug is positioned in the audio test card slot;
the audio signal plug is electrically connected with the decoding audio signal output end of the decoding unit;
the audio test card slot is used for fixing the to-be-detected call device or the to-be-detected audio control/power amplifier unit, and inputting the decoded audio signal of the decoding unit to the to-be-detected call device or the to-be-detected audio control/power amplifier unit through the audio signal plug.
The beneficial effects of the utility model are as follows:
this EMUs broadcasting system detection device is integrated according to the true operational environment and the operating condition of waiting to detect EMUs broadcasting system equipment and builds and form, can just can simulate real use working condition and carry out the functional test of accessory at the maintenance place with the help of this laboratory bench, this device sets up the test fixed unit of multiple equipment, can carry out the simulation experiment to EMUs broadcasting system accessory alone also can carry out the simulation experiment to multiple EMUs broadcasting system accessory simultaneously, flexible operation, improve the maintenance progress and the maintenance efficiency of EMUs broadcasting system accessory, the drawback that the accessory needs the installation EMUs internal test in the past has been changed, maintenance personnel's working strength has been reduced, maintenance personnel's work efficiency has been improved, maintenance quality and the precision of accessory have been improved when having optimized the operation personnel maintenance process, the quality of maintenance accessory is easier to control.
Drawings
FIG. 1 is a schematic diagram of a front view of a detecting device of a motor train unit broadcasting system according to the present utility model;
fig. 2 is an electrical schematic diagram of a detecting device of a train broadcasting system according to the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
Detailed description of the preferred embodiments
The motor train unit broadcasting system detection device of the embodiment comprises an interaction host 1, a decoding unit 2 and N test fixing units; n is a positive integer greater than or equal to 2;
the interaction host 1 is capable of generating an audio signal; the audio signal output end of the interaction host 1 is electrically connected with the audio signal input end of the decoding unit 2;
the test fixing unit comprises an audio test card slot 3-1 and an audio signal plug 4-1;
the audio signal plug 4-1 is positioned in the audio test card slot 3-1;
the audio signal plug 4-1 is electrically connected with a decoded audio signal output end of the decoding unit 2;
the audio test card slot 3-1 is used for fixing the to-be-detected call device or the to-be-detected audio control/power amplifier unit, and inputting the decoded audio signal of the decoding unit 2 to the to-be-detected call device or the to-be-detected audio control/power amplifier unit through the audio signal plug 4-1.
Specifically, the device of the present embodiment can check the availability of a motor train unit broadcast system in a CRH5 type alpine motor train unit.
As shown in fig. 1 and 2, the operation panel is respectively provided with 5 test slots (an external display test slot, an internal display test slot, a 1-level talker test slot, a 2-level talker test slot, and an ACU audio control unit/APU audio power amplifier unit (with telephone) test slot) of the motor train unit broadcasting system to be detected. The test card slot (audio test card slot 3-1, display test card slot 3-2) is internally provided with a special test plug for connecting the motor train unit broadcasting system to be detected, and is divided into a power plug 6, an audio signal plug 4-1 and a video signal plug 4-2 for connecting the motor train unit broadcasting system to be detected to a test bed. The test plugs are 5 groups, and are respectively: a power plug 6 and a video signal plug 4-2 of the external display; a power plug 6 and a video signal plug 4-2 of the internal display; the power plug 6 and the audio signal plug 4-1 of the level 1 communicator; the power plug 6 and the audio signal plug 4-1 of the 2-level communicator; an ACU/APU (with telephone) power plug 6, an audio signal plug 4-1, and a feedback signal plug 4-3.
The working principle of the test bed is as follows: the 220V alternating current is converted into 24V direct current through a direct current stabilized power supply module, the voltage and the working state of the module are monitored in real time through a voltmeter and an indicator lamp which are connected in a circuit, after a to-be-detected motor train unit broadcasting system is connected to a test bench through each test plug, an interaction host machine 1 is started, and after the interaction host machine 1 is started, an operation display page sends operation instructions to each to-be-detected motor train unit broadcasting system, and the to-be-detected motor train unit broadcasting system performs action feedback according to the received information instructions. After the action feedback of the train broadcasting system to be detected is consistent with the operation instruction sent by the interaction host 1, a maintainer can confirm that the train broadcasting system to be detected is normal in function. The test bed also has the function of breaking and short-circuit protection.
As shown in fig. 2, when the interaction host 1 is powered on, after an audio/video subsystem in a system association control area below an operation interface is turned on to operate and play an audio file instruction, the information instruction is firstly decoded by a decoding unit 2 (audio/video reading and decoding module (AVRU, audio video recoding unit)), then the complete audio file is transmitted to an ACU/APU (phone) to be tested by the audio/video reading and decoding module (AVRU), and when the ACU/APU (phone) to be tested receives a signal instruction, audio playing is started. The voice signal is externally output through a test horn 16 connected to the ACU/APU (with telephone) under test. When the audio information played by the test horn 16 is consistent with the information instruction sent by the interaction host 1, the tested ACU/APU (with telephone) audio playing function can be judged to be good.
As shown in fig. 2, when the interaction host 1 is powered on and performs an operation main interface after passing through a self-checking program, after a maintainer sends an instruction of playing audio information to start playing audio signals, a level 1 communicator is manually operated to perform equipment test, a call transmitting and broadcasting key on the level 1 communicator is pressed, the maintainer can simulate an operator to perform a real-time broadcasting function in the running process of a motor car, and real-time audio information sent by the maintainer enters a decoding unit 2 and a signal amplifying unit 5 through a signal connecting wire, and is played through a test horn 16 installed after being subjected to signal processing through the decoding unit 2 and the signal amplifying unit 5. The priority of the 1-level talker is 1-level, when the 1-level talker plays in real time (the 1-level talker playing task is set to be higher than the 2-level talker playing task by setting the task priority), the playing of the audio information and the 2-level talker playing are stopped, and the 2-level talker playing can be continued after the 1-level talker plays in real time.
The decoding unit 2 and the signal amplifying unit 5 may also amplify and decode a call voice signal between the level 1 talker and the level 2 talker and forward the call voice signal between the corresponding level 1 talker and level 2 talker. After the maintenance personnel presses the number keys on the level 1 talker to perform the simulated calling function, after the maintenance personnel sends a calling instruction, the instruction information is subjected to signal processing through the decoding unit 2 and the signal amplifying unit 5, a calling signal is transmitted to the level 2 talker, and the called level 2 talker sends out a prompt tone. When the level 2 talker is connected, the maintenance personnel can test the receiving and transmitting function state of the level 1 talker through the receiving and transmitting device on the level 2 talker.
As shown in fig. 2, when the interaction host 1 is powered on and performs an operation main interface after passing through a self-checking program, after a maintainer sends an instruction of playing audio information to start playing audio signals, a device test is performed by manually operating a 2-level communicator, a call sending and broadcasting key on the communicator is pressed, the maintainer can simulate an operator to perform a real-time broadcasting function in the running process of a motor car, and real-time audio information sent by the maintainer enters a decoding unit 2 and a signal amplifying unit 5 through a signal connecting wire, and is played through an installed test horn 16 after being subjected to signal processing through the decoding unit 2 and the signal amplifying unit 5. The priority of the 2-level talker is 2-level, when the 1-level talker plays in real time, the audio playing of the 2-level talker is stopped, and the audio playing of the 2-level talker is continued after the 1-level talker finishes playing in real time.
The decoding unit 2 and the signal amplifying unit 5 may also amplify and decode a call voice signal between the level 1 talker and the level 2 talker and forward the call voice signal between the corresponding level 1 talker and level 2 talker. After the maintenance personnel presses the number keys on the level 2 talker to perform the simulated calling function, after the maintenance personnel sends a calling instruction, the instruction information is subjected to signal processing through the decoding unit 2 and the signal amplifying unit 5, a calling signal is transmitted to the level 1 talker, and the called level 1 talker sends out a prompt tone. When the level 1 talker is connected, the maintenance personnel can test the receiving and transmitting function state of the level 2 talker through the receiving and transmitting device on the level 1 talker.
Detailed description of the preferred embodiments
In this embodiment, the interactive host 1 can generate and display a video signal; the video signal output end of the interaction host 1 is electrically connected with the video signal input end of the decoding unit 2;
the test fixing unit also comprises a display test slot 3-2 and a video signal plug 4-2;
the video signal plug 4-2 is positioned in the display test card slot 3-2;
the video signal plug 4-2 is electrically connected with a decoded video signal output end of the decoding unit 2;
the display test card slot 3-2 is used for fixing the display to be tested and inputting the decoded video signal of the decoding unit 2 to the display to be tested through the video signal plug 4-2.
Other technical features of the present embodiment are exactly the same as those of the first embodiment.
Specifically, as shown in fig. 2, when the interaction host 1 is powered on, an operation main interface is performed after a self-checking procedure, a maintainer can communicate with an external display, an internal display, a communicator and the like through an external test display area of the operation interface (the interaction host 1 can receive address information, working state information and the like of the external display, the internal display and the communicator, the external display, the internal display and the communicator can feed back corresponding signals so as to be displayed on the display interface of the interaction host 1 in a form of an image), a screen is clicked to select a car number option, a video signal input test is performed on the external display, after the maintainer sends an information instruction through the external test display area of the operation interface, the information instruction is firstly subjected to address positioning and instruction signal amplification through the decoding unit 2 and the signal amplification unit 5, then is input to the external display through the decoding unit 2 and the signal amplification unit 5, and when the display information of the external display is consistent with the information displayed in the external test display area, the external display can be judged to work normally.
As shown in fig. 2, when the interaction host 1 is powered on, the main interface is operated after the self-checking procedure, and the internal display test display area of the operation interface scrolls and displays information (video signals) such as temperature, speed, car number and the like according to the running state simulated by the host. Meanwhile, the interaction host 1 can conduct address positioning and instruction signal amplification on the analog information through the decoding unit 2 and the signal amplifying unit 5, then the analog information is input to the internal display through the decoding unit 2 and the signal amplifying unit 5, and after the internal display receives an information instruction, the internal display can scroll synchronously. And the maintenance personnel checks the display information of the internal display test display area of the operation interface with the signal display of the internal display, and when the display information of the internal display is consistent with the display information of the internal display test display area, the internal display can be judged to work normally.
Detailed description of the preferred embodiments
The present embodiment is a further explanation of the second embodiment, and further includes a signal amplifying unit 5;
the decoded audio signal and the decoded video signal of the decoding unit 2 are input to the to-be-detected talker and the to-be-detected display, respectively, through the signal amplifying unit 5.
Other technical features of the present embodiment are exactly the same as those of the second embodiment.
Specifically, the signal amplification unit 5 is used for amplifying an audio signal and a video signal that need to be amplified.
Detailed description of the preferred embodiments
This embodiment is a further explanation of the first, second or third embodiment, and further includes a feedback signal plug 4-3; the feedback signal plug 4-3 is positioned in the display test card slot 3-2 provided with the audio control/power amplifier unit to be detected;
the working state feedback signal output end of the audio control/power amplification unit to be detected is electrically connected with the working state feedback signal input end of the interaction host 1 through the interaction host 1;
the interaction host 1 is capable of displaying the working state of the audio control/power amplifier unit to be detected.
Other technical features of the present embodiment are exactly the same as those of the first, second or third embodiments.
Specifically, the interaction host 1 may also operate the main interface through the self-checking procedure, and the maintenance personnel may judge the initial working state of the tested ACU/APU (with phone) by checking the address information (working state feedback signal) displayed in the ACU detection display area of the operation interface. And playing the audio file again.
Detailed description of the preferred embodiments
The present embodiment is further described with respect to the fourth embodiment, and further includes a power supply unit and a power plug 6;
the power plug 6 is positioned in the audio test card slot 3-1 and the display test card slot 3-2;
the power plug 6 is electrically connected with the electric energy output end of the power supply unit;
the power supply unit supplies power for the to-be-detected call device, the to-be-detected audio control/power amplification unit and the to-be-detected display through the power plug 6.
Other technical features of the present embodiment are exactly the same as those of the fourth embodiment.
Specifically, the test plug is installed in a hidden mode, and the test plug is not exposed during testing, so that the whole test stand is more concise and attractive, easy to operate during installation and disassembly, and safe and simple.
The whole test of the train broadcasting system to be detected can also be carried out as well as the individual test of the equipment. The test operation of the test bed is more flexible and convenient.
The interaction host 1 with touch operation is adopted for control, so that the test operation is more visual and simple.
Detailed description of the preferred embodiments six
The present embodiment is further described in the fifth embodiment, in which the power supply unit includes an ac main power supply 7, a main switch 8, a rectifier transformer 9, a dc power supply switch 10, and a test switch 11;
the output end of the alternating current main power supply 7 is electrically connected with the alternating current input end of the rectifier transformer 9 through the main switch 8 and the direct current power supply switch 10;
the direct current output end of the rectifier transformer 9 is electrically connected with the direct current input ends of the interaction host 1, the decoding unit 2 and the power plug 6 through the test switch 11 respectively.
Other technical features of the present embodiment are exactly the same as those of the fifth embodiment.
Detailed description of the preferred embodiments
In this embodiment, the power supply unit further includes a dc ammeter 12;
the dc ammeter 12 is capable of detecting and displaying the output current value of the dc output terminal of the rectifier transformer 9.
Other technical features of the present embodiment are exactly the same as those of the sixth embodiment.
Detailed description of the preferred embodiments
This embodiment is a further description of the sixth or seventh embodiment, and further includes an ac voltmeter 13 and a dc voltmeter 14;
the ac voltmeter 13 is capable of detecting and displaying the output voltage value of the ac mains 7;
the dc voltmeter 14 can detect and display the output current value of the dc output terminal of the rectifier transformer 9.
Other technical features of the present embodiment are exactly the same as those of the sixth or seventh embodiment.
Detailed description of the preferred embodiments nine
This embodiment is a further explanation of the eighth embodiment, and further includes an ac main power supply indicator lamp 15, a dc power supply indicator lamp 16, and a test indicator lamp 17;
the alternating current main power supply 7 supplies power to an alternating current main power supply indicator lamp 15 through a main switch 8;
the alternating current main power supply 7 supplies power to the direct current power supply indicator lamp 16 through the direct current power supply switch 10;
the rectifier transformer 9 supplies power to the test indicator 17 through the test switch 11.
Other technical features of the present embodiment are exactly the same as those of the eighth embodiment.
Specifically, the main switch 8 installed on the operation panel is used for controlling the on-off of an alternating current 220V power supply, when the main power supply is connected, the alternating current 220V current is transmitted to the rectifier transformer 9 through a connecting cable to be used as a power supply of a tested accessory, the main switch 8 adopts an air switch with rated power of 32 amperes so as to meet the full-load experimental requirement of the test bed, the main switch 8 is also connected with an alternating current main power supply indicator lamp 15 and an alternating current voltmeter 13 in a circuit, when the main switch 8 is closed, the alternating current main power supply indicator lamp 15 is lighted, and the alternating current voltmeter 13 displays the current voltage value in real time, so that an operator can clearly grasp the working condition of the test bed.
The direct current power switch 10 arranged on the operation panel of the test stand shell 18 is a power switch of the rectifier transformer 9 and is used for controlling the on-off of the rectifier transformer 9, and when the direct current power switch 10 is closed by an operator, the rectifier transformer 9 is started to convert 220V alternating current into 24V direct current. The circuit of the dc power switch 10 is connected with a dc power indicator 16, a dc power indicator 16 and a dc voltmeter 14, when the dc power switch 10 is turned on, the dc power indicator 16 is turned on, and the dc voltmeter 14 displays the current 24V voltage value of the dc power, so that an operator can clearly grasp the dc voltage condition.
The test switch 11 installed on the operation panel is a working power switch of the train broadcasting system to be detected, and is used for controlling the touch interaction host 1, the decoding unit 2 (audio/video reading decoding module (AVRU)), the signal amplifying unit 5 and the on/off of the train broadcasting system to be detected, when the test switch 11 is closed by an operator, a test circuit of the train broadcasting system to be detected is closed, and direct current 24V is supplied to the equipment such as the touch interaction host 1 through a connecting circuit.
The circuit of the dc power switch 10 is connected with a test indicator 17 and a dc ammeter 12, when the dc power switch 10 is turned on, the test indicator 17 is turned on, and the dc ammeter 12 displays the current value, so that an operator can clearly grasp the working condition of the device.
As shown in fig. 1 and 2, when an external display, an internal display, a level 1 communicator, a level 2 communicator, an ACU/APU (with telephone) are connected to a test slot on a test stand through a test socket, a main switch 8 is closed, 220V ac power lights an ac main power indicator lamp 15 through an internal circuit, and an ac voltmeter 13 displays an ac voltage state in real time. The direct-current power supply switch 10 of the rectifier transformer 9 is closed, 220V alternating current enters the rectifier transformer 9 through a circuit, after the rectifier transformer 9 is powered on, the direct-current power supply indicator lamp 16 is lightened, the direct-current voltmeter 14 displays the direct-current voltage state in real time, and a maintenance person determines the working state of the rectifier transformer 9 through testing the state of the indicator lamp 17. And closing a test switch 11 of the train broadcasting system to be detected, and inputting 24V direct current to all the train broadcasting systems to be detected through a circuit to start all the train broadcasting systems to be detected. The 24V direct current lights the test indicator lamp 17 through an internal circuit, and the direct current ammeter 12 displays the direct current state in real time.
Detailed description of the preferred embodiments
This embodiment is a further explanation of the ninth embodiment, and further includes a test stand housing 18;
the test stand housing 18 is provided with a plurality of equipment holes;
the main switch 8, the direct-current power switch 10, the test switch 11, all the audio test card slots 3-1, all the display test card slots 3-2, the interaction host 1, the ammeter 12, the alternating-current voltmeter 13, the direct-current voltmeter 14, the alternating-current main power indicator lamp 15, the direct-current power indicator lamp 16 and the test indicator lamp 17 are all embedded and fixed on corresponding equipment holes.
Other technical features of this embodiment are exactly the same as those of the ninth embodiment.
Specifically, as shown in fig. 1 and 2, the utility model discloses a EMUs broadcast system detection device includes test bench casing 18. The test bed shell 18 provides an integral test accessory installation support frame for the function test and the aging fatigue test of the motor train unit broadcasting system to be detected, and the motor train unit broadcasting system detection device has a certain height, so that the motor train unit broadcasting system detection device is convenient for operators to operate and use.
The device is also provided with a USB interface 19, and can update the system and the information of the interaction host 1, so that the test bed is more convenient for later updating and maintenance and meets the requirement of accessory test.
Taking the maintenance and experiment process of the external display of the train broadcasting system as an example, the original maintenance and experiment time period is 8 hours (maintenance 2 hours + installation 2 hours + experiment 2 hours + disassembly 2 hours on the train), only 4 hours (maintenance 2 hours + experiment 2 hours) are needed to complete, 1.5 maintenance and experiment are carried out for each person every day, and 4 maintenance and experiment are carried out for each person every day.
Although the utility model herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present utility model. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present utility model as defined by the appended claims. It should be understood that the different dependent claims and the features herein may be combined in ways other than as described in the original claims. It is also to be understood that features described in connection with separate embodiments may be used in other embodiments.
Claims (10)
1. The motor train unit broadcasting system detection device is characterized by comprising an interaction host (1), a decoding unit (2) and N test fixing units; n is a positive integer greater than or equal to 2;
-the interaction host (1) is capable of generating an audio signal; the audio signal output end of the interaction host (1) is electrically connected with the audio signal input end of the decoding unit (2);
the test fixing unit comprises an audio test card slot (3-1) and an audio signal plug (4-1);
the audio signal plug (4-1) is positioned in the audio test card slot (3-1);
the audio signal plug (4-1) is electrically connected with the decoded audio signal output end of the decoding unit (2);
the audio test card slot (3-1) is used for fixing a to-be-detected call device or an to-be-detected audio control/power amplification unit and inputting the decoded audio signal of the decoding unit (2) to the to-be-detected call device or the to-be-detected audio control/power amplification unit through the audio signal plug (4-1).
2. The motor train unit broadcasting system detection apparatus as set forth in claim 1, wherein the interactive host (1) is further capable of generating and displaying a video signal; the video signal output end of the interaction host (1) is electrically connected with the video signal input end of the decoding unit (2);
the test fixing unit also comprises a display test slot (3-2) and a video signal plug (4-2);
the video signal plug (4-2) is positioned in the display test card slot (3-2);
the video signal plug (4-2) is electrically connected with a decoded video signal output end of the decoding unit (2);
the display test card slot (3-2) is used for fixing a display to be detected and inputting a decoded video signal of the decoding unit (2) to the display to be detected through the video signal plug (4-2).
3. The motor train unit broadcasting system detection apparatus as set forth in claim 2, further comprising a signal amplifying unit (5);
the decoding unit (2) is used for inputting the decoded audio signal and the decoded video signal to the to-be-detected call device and the to-be-detected display through the signal amplifying unit (5) respectively.
4. A motor train unit broadcasting system detection apparatus as claimed in claim 1, 2 or 3, further comprising a feedback signal plug (4-3); the feedback signal plug (4-3) is positioned in a display test card slot (3-2) for installing an audio control/power amplification unit to be detected;
the working state feedback signal output end of the audio control/power amplification unit to be detected is electrically connected with the working state feedback signal input end of the interaction host (1) through a feedback signal plug (4-3);
the interaction host (1) can display the working state of the audio control/power amplifier unit to be detected.
5. The motor train unit broadcasting system detection apparatus as set forth in claim 4, further comprising a power supply unit, and a power plug (6);
the power plug (6) is positioned in the audio test card slot (3-1) and the display test card slot (3-2);
the power plug (6) is electrically connected with the electric energy output end of the power supply unit;
the power supply unit supplies power for the to-be-detected call device, the to-be-detected audio control/power amplification unit and the to-be-detected display through the power plug (6).
6. The motor train unit broadcasting system detection apparatus as set forth in claim 5, wherein the power supply unit includes an ac main power supply (7), a main switch (8), a rectifier transformer (9), a dc power supply switch (10) and a test switch (11);
the output end of the alternating current main power supply (7) is electrically connected with the alternating current input end of the rectifier transformer (9) through the main switch (8) and the direct current power supply switch (10);
the direct current output end of the rectifier transformer (9) is electrically connected with the direct current input ends of the interaction host (1), the decoding unit (2) and the power plug (6) through the test switch (11) respectively.
7. The motor train unit broadcasting system detection apparatus as set forth in claim 6, wherein the power supply unit further includes a direct current meter (12);
the direct current ammeter (12) can detect and display the output current value of the direct current output end of the rectifier transformer (9).
8. The motor train unit broadcasting system detecting apparatus as set forth in claim 6 or 7, further comprising an ac voltmeter (13) and a dc voltmeter (14);
the alternating-current voltmeter (13) can detect and display the output voltage value of the alternating-current main power supply (7);
the direct-current voltmeter (14) can detect and display the output current value of the direct-current output end of the rectifier transformer (9).
9. The motor train unit broadcasting system detecting device according to claim 8, further comprising an ac mains indicator lamp (15), a dc power indicator lamp (16) and a test indicator lamp (17);
the alternating current main power supply (7) supplies power to an alternating current main power supply indicator lamp (15) through a main switch (8);
the alternating current main power supply (7) supplies power to the direct current power supply indicator lamp (16) through the direct current power supply switch (10);
the rectifier transformer (9) supplies power for the test indicator lamp (17) through the test switch (11).
10. The motor train unit broadcasting system detecting apparatus as set forth in claim 9, further comprising a test stand housing (18);
a plurality of equipment holes are formed in the test bed shell (18);
the main switch (8), the direct current power switch (10), the test switch (11), all audio test card slots (3-1), all display test card slots (3-2), the interaction host (1), the direct current ammeter (12), the alternating current voltmeter (13), the direct current voltmeter (14), the alternating current main power indicator lamp (15), the direct current power indicator lamp (16) and the test indicator lamp (17) are all embedded and fixed on corresponding equipment holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322373112.9U CN220754834U (en) | 2023-09-01 | 2023-09-01 | EMUs broadcast system detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322373112.9U CN220754834U (en) | 2023-09-01 | 2023-09-01 | EMUs broadcast system detection device |
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| Publication Number | Publication Date |
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| CN220754834U true CN220754834U (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202322373112.9U Active CN220754834U (en) | 2023-09-01 | 2023-09-01 | EMUs broadcast system detection device |
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| Country | Link |
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| CN (1) | CN220754834U (en) |
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