CN216600085U - Audio function test circuit and intelligent cabin product function detection system - Google Patents

Abstract

The utility model relates to an audio function test circuit and an intelligent cabin product function detection system, wherein the audio function test circuit comprises a data acquisition card and a signal generator, the signal generator is communicated with an upper computer, the signal generator is used for generating broadcast signals with corresponding frequencies, the broadcast signals are transmitted to a product to be tested through a radio antenna, the product to be tested is used for receiving the broadcast signals, current signals are converted into voltage signals through a load, the voltage signals are transmitted to the data acquisition card through an isolation transformer for voltage sampling, and the data acquisition card is connected with the upper computer. The utility model successfully realizes the isolation of the ground wire of the acquisition card from the ground wire of the horn, realizes the sampling of the horn signal and realizes the protection of the acquisition card.

Description

Audio function test circuit and intelligent cabin product function detection system

Technical Field

The utility model belongs to the technical field of detection, and particularly relates to an audio function test circuit and an intelligent cabin product function detection system.

Background

Production of existing intelligent cabin products is detected manually, firstly, detection personnel are more, secondly, the detection efficiency is low, and the detection result is influenced by the proficiency of the personnel and fluctuates greatly.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an audio function test circuit and an intelligent cabin product function detection system, which can at least solve part of defects in the prior art.

The technical scheme of the utility model is realized as follows: the utility model discloses an audio function test circuit which comprises a data acquisition card and a signal generator, wherein the signal generator is communicated with an upper computer and used for generating broadcast signals with corresponding frequencies, the broadcast signals are transmitted to a product to be tested through a radio antenna, the product to be tested is used for receiving the broadcast signals, current signals are converted into voltage signals through a load, the voltage signals are transmitted to the data acquisition card through isolation of an isolation transformer for voltage sampling, and the data acquisition card is connected with the upper computer.

Furthermore, two output ends of each power amplifier output channel of the product to be detected are respectively connected with two input ends of an isolation transformer, one output end of the isolation transformer is connected to a ground terminal, and the other output end of the isolation transformer is connected with the input end of the data acquisition card.

Furthermore, one end of the load is connected with one output end of the power amplifier output channel of the product to be tested, and the other end of the load is connected with the other output end of the power amplifier output channel of the product to be tested.

The utility model discloses an intelligent cabin product function detection system which comprises an upper computer, a load output function test circuit and the audio function test circuit, wherein the load output function test circuit comprises an industrial control board card and an electronic load, the electronic load is communicated with the upper computer, each load output end of an intelligent cabin product to be detected is connected with the electronic load through each electronic switch, the electronic switch is connected with the industrial control board card, and the industrial control board card is connected with the upper computer.

Furthermore, the electronic switch is a relay, the industrial control board card is used for controlling the energization or the outage of a coil of the relay, and contacts of the relay are connected between the electronic load and each load output end of the intelligent cabin product to be tested.

Furthermore, the intelligent cabin product function detection system further comprises a wireless signal function test circuit, the wireless signal function test circuit comprises a wireless signal generator, the wireless signal generator is used for generating wireless signals, the upper computer is connected with the intelligent cabin product to be detected through a bus, the upper computer is used for sending CAN instructions to the intelligent cabin product to be detected, corresponding functions are opened, the intelligent cabin product to be detected is used for analyzing the wireless signals, and signal intensity indexes are fed back to the upper computer through a CAN bus, so that cabin wireless signal function detection is achieved.

The utility model has at least the following beneficial effects: according to the utility model, through the function analysis of the cockpit product and the control of various detection circuits by the upper computer, the automatic detection of the intelligent cockpit product is realized, the detection efficiency is improved, the number of detection personnel is reduced, and the problem that the detection result is greatly influenced by the proficiency of the personnel and greatly fluctuates is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic block diagram of an audio function test circuit according to an embodiment of the present invention;

FIG. 2 is a circuit diagram of an audio function testing circuit according to an embodiment of the present invention;

FIG. 3 is a schematic block diagram of a load output function test circuit according to an embodiment of the present invention;

FIG. 4 is a circuit diagram of a load output function test circuit according to an embodiment of the present invention;

FIG. 5 is a schematic block diagram of a wireless signal function test circuit according to an embodiment of the present invention;

FIG. 6 is a circuit diagram of a switching value interaction circuit according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a partial layout of a pipeline according to an embodiment of the present invention;

FIG. 8 is a block diagram of any segment of a pipeline according to an embodiment of the present invention;

fig. 9 is a schematic view of an upper surface view of a carrier according to an embodiment of the utility model;

fig. 10 is a schematic view of a bottom surface of a carrier according to an embodiment of the utility model;

fig. 11 is a schematic top view of a jacking-positioning device according to an embodiment of the present invention;

fig. 12 is a schematic view of a front view of a jacking-positioning device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1 and fig. 2, the embodiment discloses an audio function test circuit, which includes a data acquisition card and an FM/AM signal generator, wherein the FM/AM signal generator is in serial communication with an upper computer, the upper computer controls the FM/AM signal generator to generate a broadcast signal with a corresponding frequency through a serial signal, the broadcast signal is transmitted to an intelligent cockpit product to be tested through a radio antenna, the intelligent cockpit product to be tested is used for receiving the broadcast signal, amplifying an audio current signal through a power amplifier, converting the current signal into a voltage signal through a load, transmitting the voltage signal to the data acquisition card through an isolation transformer for voltage sampling, the data acquisition card is connected with the upper computer, the data acquisition card is used for transmitting a sampling voltage to the upper computer, and the upper computer performs audio quality analysis according to the sampling voltage; and the isolation transformer is used for realizing the isolation of the acquisition card ground wire and the horn ground wire. The data acquisition card of the audio function test circuit of the embodiment adopts a Huahua PCIE-1810 acquisition card. The FM/AM signal generator of the present embodiment employs an SP-1501B FM/AM signal generator.

As shown in fig. 1 and 2, the upper computer controls the SP-1501B FM/AM signal generator through a serial port signal to generate a broadcast signal (such as FM 90.1MHZ) with a corresponding frequency, transmits the broadcast signal to the intelligent cabin host through a radio antenna, amplifies an audio current signal through a power amplifier, converts the current signal into a voltage signal through a load, transmits the voltage signal to an acquisition card for voltage sampling through an isolator, and performs audio quality analysis according to the sampling voltage. The audio signal adds the isolator main purpose and realizes the bottom line isolation. The horn-signal output by the intelligent cabin is not a true ground, and if the horn-signal is directly connected to the 1810 acquisition card, a loop for raising the acquisition card can be generated, and even the acquisition card can be burnt. The isolation of the acquisition card ground wire and the horn ground wire is successfully realized through one path of isolation transformer, so that the sampling of the horn signal is realized, and the protection of the acquisition card is realized.

Furthermore, two output ends of each power amplifier output channel of the product to be detected are respectively connected with two input ends of an isolation transformer, one output end of the isolation transformer is connected to a ground terminal, and the other output end of the isolation transformer is connected with the input end of the data acquisition card.

Furthermore, one end of the load is connected with one output end of the power amplifier output channel of the product to be tested, and the other end of the load is connected with the other output end of the power amplifier output channel of the product to be tested.

Example two

Referring to fig. 1 to 5, the embodiment discloses an intelligent cabin product function detection system, which includes an upper computer, a load output function test circuit, and an audio function test circuit as in the first embodiment, where the load output function test circuit includes an industrial control board and an electronic load, the electronic load communicates with the upper computer, each load output end of an intelligent cabin product to be detected is connected with the electronic load through each electronic switch, the electronic switch is connected with the industrial control board, and the industrial control board is connected with the upper computer. The upper computer is used for setting the resistance of the electronic load and detecting the current fed back by the electronic load to realize the load output function test.

Furthermore, the electronic switch is a relay, the industrial control board card is used for controlling the energization or the outage of a coil of the relay, and contacts of the relay are connected between the electronic load and each load output end of the intelligent cabin product to be tested. The electronic load of the present embodiment employs IT8512A + electronic load.

As shown in fig. 3 and 4, the PCIE-1810 is used to control the intermediate switching relay, so that only one path of load output of the intelligent cabin is connected with the electronic load at the same time. And setting corresponding resistance values according to different output channels through the upper computer. The purpose of the load output function test circuit is to measure the load driving capacity of the intelligent cabin, for example, the cabin is required to have a load driving capacity of 2A, whether the driving capacity of 2A can be achieved through electronic load actual measurement is required, for example, USB output is required, a user may require a mobile phone capable of achieving 3A to charge, and the load output function test circuit needs to measure whether the driving capacity of 3A can be achieved through electronic load measurement.

The test principle is as follows: set up electronic load's resistance through the host computer, then will measure PIN foot access resistance load, then electronic load can be with the current feedback industrial computer of measuring, if USB power source is 5V, measured current requires to be 1A, then sets up resistance to 5 ohm, detects the current that feeds back in this time and whether is 1A, if yes, just represents the driving capability, otherwise just represents the drive ability inadequately.

Furthermore, the intelligent cabin product function detection system also comprises a wireless signal function test circuit, the wireless signal function test circuit comprises a wireless signal generator, the wireless signal generator is used for generating wireless signals, the upper computer is used for sending CAN instructions to the intelligent cabin product to be detected, the corresponding wireless function is opened (if WIFI needs to be tested, the WIFI function is opened, if GPS, GPRS or Bluetooth needs to be tested, the GPS, GPRS or Bluetooth function is opened), the intelligent cabin product to be detected is used for analyzing the wireless signals, and signal intensity indexes are fed back to the upper computer through a CAN bus, so that the cabin wireless signal function detection is realized.

The wireless signal function test circuit comprises a WIFI function test/GPS and GPRS function test/Bluetooth function test circuit. As shown in fig. 5, the WIFI function test/GPS, GPRS function test/bluetooth test modes are the same. The host of the intelligent cabin reads specific wireless signals, and the host reads the wireless signal intensity of the intelligent cabin, so that the hardware function detection is realized. The WIFI signal is generated by installing a WIFI router on the pipeline, the GPS signal is generated by installing a GPS signal generator on the pipeline, and the Bluetooth signal is generated by installing a Bluetooth simulator on the pipeline.

The industrial personal computer of the intelligent cabin product function detection system and the PLC of the pipeline control system carry out data interaction, the industrial personal computer of the intelligent cabin product automatic detection system and the PLC of the pipeline control system can interact through buses, and the industrial personal computer of the intelligent cabin product automatic detection system and the PLC of the pipeline control system can also directly interact through a switching value interaction circuit.

Referring to fig. 6, the switching value interaction circuit includes a collection card, a first optocoupler and a second optocoupler, the collection card is connected with an upper computer of the intelligent cabin product automatic detection system, a first output end of the first optocoupler is connected with a low level or a high level, a second output end of the first optocoupler is connected with an input end of a PLC of the assembly line automatic circulation control system, a first input end of the first optocoupler is connected with an output end of the collection card, and a second input end of the first optocoupler is connected with a power supply.

Preferably, the switching value interaction circuit further comprises an intermediate relay, one end of a normally open contact of the intermediate relay is connected with a low level or a high level, and the other end of the normally open contact of the intermediate relay is connected with the input end of a PLC of the assembly line automatic circulation control system. At the moment, the first input end of the first optocoupler is connected with the output end of the acquisition card, and the second input end of the first optocoupler is connected with the power supply. The first output end of the first optical coupler is connected with a low level or a high level, the second output end of the first optical coupler is connected with one end of a coil of the intermediate relay, and the other end of the coil of the intermediate relay is connected with a power supply. The host computer of intelligence cabin product automatic checkout system is arranged in controlling the collection card (if adopt and grind and hua PCI-1711U collection card) output level signal (like the high level), simultaneously in order to increase PCI-1711U output driving ability, output signal enlargies through optical coupling module (if adopt A-A8CH), and then drive intermediate relay coil end, thereby realize level signal (if the low level) export the automatic PLC that circulates control system of assembly line, if when PLC's input requires for the low level, need realize exporting the automatic PLC that circulates control system of assembly line after changing the output of industrial computer into the low level, otherwise unable communication.

The industrial personal computer adopts an acquisition board card 1810 which is an IO driving port, and can normally and stably work only when the driving capacity is about 3mA and the intermediate relay needs about 10mA, so that a primary optical coupler is added in the middle. The reason why the optical coupler is not directly used for driving the rear part but a primary relay is added is as follows: the direct drive of the optical coupler is not large, and a primary relay is added for preventing the rear end from short circuit and directly burning the optical coupler.

The first output end of the second optocoupler is connected with a low level or a high level (when the input end of the acquisition card is required to be grounded, the first output end of the second optocoupler is connected with the low level), and the second output end of the second optocoupler is connected with the input end of the acquisition card. The first input end of the second optical coupler is connected with the output end of a PLC of the automatic flow control system of the assembly line, and the second input end of the second optical coupler is connected with a power supply. The PLC of the automatic flow control system of the assembly line outputs a level signal (such as a high level) to control the conduction of the light emitting end of the second optical coupler, so that the input end of the acquisition card is grounded. The model of the second optical coupler is MRD-060D 2.

Through the input and output interaction of the switching value between the production line control system and the intelligent cabin product function detection system, the communication between the production line and the intelligent cabin product automatic detection system is realized.

Referring to fig. 7 to 12, an embodiment of the present invention provides an intelligent cabin product automatic detection apparatus, including an assembly line, an assembly line control system, and a carrier plate 100 for supporting and fixing a product, where the assembly line is provided with at least one detection station, the assembly line includes a rack and a conveying mechanism mounted on the rack for conveying the carrier plate, the rack is provided with lift-up positioning devices at intervals along a flow direction of the carrier plate, the lift-up positioning devices are in one-to-one correspondence with the detection stations, each detection station is provided with a carrier plate blocking device 600, the conveying mechanism, the lift-up positioning devices, and the carrier plate blocking devices are all electrically connected to the assembly line control system, a positioning plate is fixed on the lift-up positioning device, a connector is arranged on an upper end surface of the positioning plate of the lift-up positioning device of the detection station, and is used for being connected to a first connector arranged on the carrier plate in a matching manner, so as to realize electrical connection between the positioning plate and the carrier plate, the connector on the locating plate is electrically connected with the intelligent cabin product automatic detection system, and the carrier plate is provided with a second connector used for being electrically connected with a product.

The conveying mechanism of this embodiment employs a double speed chain.

Further, the jacking positioning device comprises a jacking positioning cylinder 202, the cylinder shaft of the jacking positioning cylinder extends upwards, a positioning plate 200 is fixed on the cylinder shaft of the jacking positioning cylinder, a connector 201 is arranged on the upper end face of the positioning plate of the jacking positioning device at least used for detecting a station and is used for being connected with the connector arranged on the support plate in a matched mode, electric connection between the positioning plate and the support plate is achieved, and the connector 201 on the positioning plate 200 is electrically connected with an intelligent cabin product automatic detection system. The jacking positioning cylinder is connected with a corresponding electromagnetic valve through an air pipe, and the electromagnetic valve is connected with a PLC control circuit.

Further, the surface of the carrier plate facing the positioning plate 200 has a guiding positioning hole 204, the positioning plate 200 is provided with a plurality of positioning pins 205, the positioning pins 205 and the guiding positioning holes 204 are all arranged in a one-to-one correspondence, and when the positioning plate 200 is lifted, the positioning pins 205 are inserted into the guiding positioning holes 204. In this embodiment, the guiding positioning holes 204 correspond to the positioning pins 205 of the wire body one-to-one, when the blocking block 110 collides with the blocking block, the carrier plate is blocked and cannot be rotated backwards, at this time, the bottom jacking positioning cylinder 202 rises to drive the thimble 206 and the positioning pin 205 to rise, the upper part of the positioning pin 205 is conical, the lower part is cylindrical, the diameter is close to that of the positioning hole, during the rising process, the head of the positioning pin 205 enters the guiding hole to drive the fine adjustment position of the carrier plate, after the lifting for a certain distance, the bottom of the cone of the positioning pin 205 is just matched with the guiding positioning holes 204 in place, so as to realize the concentric positioning of the positioning holes and the positioning pins 205, the jacking positioning cylinder 202 further rises to drive the carrier plate to rise, at this time, the limiting groove 117 contacts with the limiting stopper of the wire body, so as to prevent the carrier plate from further rising, and realize the fixation of the carrier plate.

The support plate orientation the face of locating plate 200 has thimble contact 112, connector 201 includes thimble 206 and thimble sheath base 207, thimble sheath base 207 locates on the locating plate 200, thimble 206 locates on the thimble sheath base 207 and thimble 206 is in insert during the lifting of locating plate 200 thimble contact 112, the thimble 206 sheath on the thimble sheath base 207 is connected to test equipment. In the present embodiment, the pin contacts 112 are fixed on the carrier, the contacts are distributed on the upper and lower sides of the carrier and made of conductive copper material, each pin contact 112 is connected to the pins of the front signal adapter 122 in a one-to-one correspondence manner, and each pin contact 112 is connected to the pin 206 of the wire in a one-to-one correspondence manner.

Further, the connector 201 further includes a high frequency pin 208, the carrier board has a high frequency signal socket 209 into which the high frequency pin 208 is inserted, and an external high frequency signal is input to the carrier board through the high frequency pin 208. In this embodiment, the high frequency pin 208 may enable an external high frequency signal to be input into the carrier board, and the high frequency signal socket 209 is connected to a corresponding interface of the product to be tested, so as to enable the high frequency signal to be input into the product through the carrier board.

The assembly line can also set up the assembly station, and the support plate is when the assembly station, accomodates the pencil in pencil fixed block 111, and the operating surface of assembly all can be regarded as to the below region of centre gripping spout 107, and antistatic material has been laid on the support plate surface, can prevent the product fish tail in the assembling process, can prevent that the product from following the landing in the support plate is carried. When the carrier plate is at a detection station, the product and the carrier plate are connected by corresponding wire harnesses, the supporting rod 105 is supported, the product is placed on the supporting rod 105, a power supply enters the carrier plate through a bottom copper bar and is supplied to the product through the wire harnesses, and product detection can be realized; when the carrier board is at the automatic detection station, the test input and output signals are connected to the automatic test system through the carrier board bottom thimble 206 and the thimble contact 112, so as to realize the automatic test.

Furthermore, the carrier plate blocking device comprises a carrier plate blocking device, the cylinder shaft of the blocking cylinder extends upwards, and a blocking block is fixed on the cylinder shaft of the blocking cylinder. The support plate blocking device is connected with a corresponding electromagnetic valve through an air pipe, and the electromagnetic valve is connected with the PLC control circuit.

When a certain station needs to be used, the next carrier plate blocking device of the jacking positioning device of the station is controlled to rise through the PLC, meanwhile, the previous carrier plate blocking device of the jacking positioning device of the station is in a descending state, a detection switch is arranged on a blocking block of the next carrier plate blocking device of the jacking positioning device, when a carrier plate hits the detection switch on the blocking block of the next carrier plate blocking device, the detection switch outputs a signal to the PLC, the PLC controls the jacking positioning device of the station to jack up the carrier plate, the previous carrier plate blocking device of the jacking positioning device of the station is controlled to rise through the PLC, other carrier plates are prevented from entering the station until the assembly or detection operation of the station is completed. After the assembly or detection operation of the station is completed, the next carrier plate blocking device of the jacking positioning device of the station can be controlled to descend through the PLC, the jacking positioning device of the station is controlled to descend through the PLC, the carrier plate falls onto the first conveying mechanism and is conveyed to the next procedure by the first conveying mechanism, the next carrier plate blocking device of the jacking positioning device of the station is controlled to rise through the PLC, and the previous carrier plate blocking device of the jacking positioning device of the station is controlled to descend through the PLC.

Furthermore, a first connector used for being electrically connected with an intelligent cabin product automatic detection system is arranged on the lower end face of the carrier plate, and a second connector used for being electrically connected with a product is arranged on the upper end face of the carrier plate; the lower end face of the carrier plate is provided with two parallel contact conductive strips arranged at intervals and used for rolling contact with conductive wheels 5051 in conductive rails 505 arranged on the rack and forming electric conduction, and the conductive rails are arranged at positions corresponding to at least detection stations on the rack.

Furthermore, each station is provided with a plurality of control keys, including a release key and a stop key; the assembly line control system comprises a PLC control circuit, a power supply control circuit, an air cylinder control circuit and a motor control circuit, wherein the power supply control circuit is used for supplying power to the whole assembly line, a control key is connected with the input end of the PLC control circuit, and the output end of the PLC control circuit is respectively connected with a jacking positioning device, the air cylinder control circuit of a support plate blocking device and the motor control circuit of a conveying mechanism.

The cylinder control circuit of the jacking positioning device and the support plate blocking device comprises cylinder electromagnetic valves respectively connected with each path of cylinder, one end of each cylinder electromagnetic valve is connected with the output end of the PLC control circuit, and the other end of each cylinder electromagnetic valve is grounded. One end of the control key is connected with the PLC control circuit, and the other end of the control key is grounded.

The assembly line comprises a plurality of assembly stations and a plurality of detection stations, wherein each assembly station and each detection station are annularly arranged or linearly arranged, the assembly stations are used for assembling all parts of a product to be produced, and the detection stations are used for testing all functions of the product to be produced; each assembling station and each detecting station are provided with a support plate blocking device and a jacking positioning device, the support plate blocking device is used for preventing the product to be produced in an unsatisfied state from flowing along the production line, and the jacking positioning device is used for fixing the product to be produced. In this embodiment, realized the assembly of product, detected the integration, and adopted support plate blocking device and jacking positioner's cooperation, avoided causing the chaotic problem of production, improved production efficiency and yields, realized the volume production of product. Specifically, production is started, products to be produced flow from a first station to subsequent stations along with the production line, when the products to be produced approach the first station, the station judges whether the products to be produced are in place or not, meanwhile, whether a jacking positioning device of the station is in a descending state or not is detected, if the situation is met, a support plate blocking device of the station is released, the products to be produced flow into a working position of the station for production, after the production work of the first station is finished, the products to be produced continue to flow into the next station, and the work is repeated until the production work of all assembly stations and all detection stations is finished. The automatic assembling and detecting device comprises 16 assembling stations D1-D13, D17-D20, 2 full-automatic detecting stations D14 and D15 and 1 semi-automatic detecting station D16. The production line can be suitable for intelligent cabin production, during production, five assembly stations are used, three detection stations are used, the Z1 process loudspeaker and lower plate assembly is operated at a D1 position, the Z2 process flat cable and upper plate assembly are operated at a D2 position, the Z3 process upper cover and WIFI cover assembly is operated at a D3 position, the Z4 process front cover and SIM card cover assembly is operated at a D4 position, the Z5 process test wiring harness is connected at a D5 position for operation, the Z6 process switching value function test is operated at a D14 position, the Z7 process radio frequency function test is operated at a D15 position, the Z8 process video function test is operated at a D16 position, and the Z9 process bracket assembly and packaging are operated at a platform above a left transverse moving rotating system. The test harness connection specifically comprises: connecting a test wire harness on the carrier plate with equipment to be tested; the switching value function test specifically comprises the following steps: the testing equipment automatically performs switching value function tests, such as version information detection, CAN bus detection, Lin bus detection, small lamp signals, ON gear signals, a dryer switch, an air suspension switch, a charging indication, an air filter blockage alarm switch, a brake shoe abrasion switch and the like; the radio frequency function test specifically comprises the following steps: the test equipment automatically performs radio frequency lamp function tests, such as a GPS positioning function, a 4G communication function, a WIFI function, a Bluetooth function, a voice receiving and playing function, an SD card read-write test, a USB data read-write and the like; the video function test specifically comprises the following steps: the testing equipment automatically performs a quiescent current test, automatically enters a video function testing mode, manually performs the video function test and nameplate posting, and removes a wiring harness connected with a product by a carrier plate; the support assembling and packaging method specifically comprises the following steps: the support is fixed on the shell through screws by an electric screwdriver, and the product is put into the packing box. Preferably, in practice, the product to be produced may be placed on a carrier plate, which flows on the production line 500 to move the product to be produced. The following embodiments detail the specific structure of the carrier plate.

Further, each assembly station and each detection station all have a work position, support plate blocking device is located one side of work position, just jacking positioner is located under the work position, block when support plate blocking device's piston stretches out treat the product of producing, fixed when jacking positioner's piston stretches out treat the product of producing. Preferably, both sides of the working position are provided with the carrier plate blocking devices. Preferably, sensors are arranged on two sides of the working position, the two sensors sense the position of the product to be produced and control signals to be fed back to the support plate blocking device and the jacking positioning device. In the embodiment, after the production of the wire body is started, the assembly side of the carrier plate faces to an operator, the wire body starts to flow clockwise from a station D1, and after the carrier plate reaches a station Z1F, the wire body starts to detect whether a carrier plate in-place signal exists in the station Z1, and simultaneously detects whether a jacking positioning device D1 is in a descending state, if the carrier plate in-place signal meets the condition, the carrier plate blocking device Z1F is released, so that an empty carrier plate flows into a station D1; when the Z1 stops sensing a carrier plate in-place signal, controlling the D1 jacking positioning device to lift up to fix the carrier plate, starting the assembly operation of the loudspeaker and the lower plate by an operator, placing a semi-finished product on the carrier plate after the operation is finished, manually pressing a release button on the wire body, detecting whether the Z2F stops the carrier plate in-place signal or not by the wire body, if the in-place signal does not exist, controlling the jacking positioning device D1 and the Z1 to descend for a certain time by the wire body, bouncing up after the carrier plate flows through, and enabling the carrier plate to carry a product to enter a Z2F position. When the Z2F position sensor senses that the carrier plate reaches a signal, the wire body starts to detect whether a carrier plate in-place signal exists in the Z2, and simultaneously detects whether the jacking positioning device D2 is in a descending state, if the jacking positioning device D2 is in the descending state, the Z2F carrier plate blocking device is released, so that the carrier plate with a product flows into a D2 working position; when the Z2 stops sensing a carrier plate in-place signal, controlling the D2 jacking positioning device to lift up to fix the carrier plate, starting wire arrangement and upper plate assembly operation by an operator, placing a semi-finished product on the carrier plate after the operation is finished, manually pressing a release button on the wire body, detecting whether the wire body detects that the Z3F stops carrying the carrier plate in-place signal, if the in-place signal does not exist, controlling the jacking positioning device D2 and the Z2 to descend for a certain time by the wire body, bouncing up after the carrier plate flows through, and enabling the carrier plate to carry a product to enter a Z3F position. The support plate is according to the preface flow, cooperation manual work, and the circulation backward in proper order, when arriving right sideslip a steering system department, a steering system conveys support plate and product toward D11 process, rotates 180 with the support plate simultaneously in transportation process for support plate and product are when D11 station, still assemble the side to the operator. An operator connects one end of a product matching wire harness to the support plate wire harness socket 507 on the support plate in the procedure D11, the other end of the product matching wire harness is connected to a product to be tested, a release button is pressed after the connection is completed, and the product flows through the procedures D12 and D13 along with the support plate, so that the procedure D14 is achieved. When the intelligent cabin product is produced, the procedures of D12 and D13 are not used, the stop button on the station is manually pressed, the line body automatically shields the procedures, and when the carrier plate flows through the procedures, the jacking positioning device does not lift up, and the carrier plate enters the next procedure after being blocked by two pieces.

Furthermore, conductive tracks are laid on at least detection stations of the first line body and the second line body, a conductive copper bar matched with the conductive tracks is arranged at the bottom of a carrier plate on which a product to be produced is placed along the flowing direction of the production line 500, and when the carrier plate flows on the production line 500 and passes through the stations with the conductive tracks, the conductive tracks are in elastic contact with the conductive copper bars so that the carrier plate is powered. The first line body and the second line body are laid with a speed-multiplying chain 506, and the speed-multiplying chain 506 drives the product to be produced to flow. In this embodiment, conductive tracks are laid on the wire body at the stations D12-D19, the inner side of the wire body is a track anode, the outer side of the wire body is a track cathode, a conductive copper bar is installed at a position corresponding to the conductive tracks at the bottom of the carrier plate, the carrier plate is placed on the double-speed chain 506 of the assembly line, the carrier plate is driven to flow forward when the double-speed chain 506 flows, and when the carrier plate flows through this station, the conductive wheels 5051 on the conductive tracks are just in elastic contact with the conductive copper bars at the bottom of the carrier plate, so that the carrier plate is powered. The socket on the support plate is conducted with the conductive copper bar through the electric wire inside the support plate, and when the product connected with the power supply and test wire harness flows through the stations along with the support plate, the product can realize live circulation. In this embodiment, a carrier board carrying a product starts to be powered on in a D12 process, in the process of waiting for a previous product to complete a D14 process test, the product completes system startup, after a D14 station is idle, Z14F stops descending, the carrier board carrying the product moves towards Z14 in a stopping manner, after the carrier board reaches a Z14 stop, a D14 station jacking positioning device jacks, a Z14 jacking positioning device is provided with a test thimble, a test point is arranged at a position corresponding to the thimble on the carrier board, in the process of jacking the carrier board upwards by the jacking positioning device, the carrier board stops moving after the test point touches the test point, the jacking positioning device pushes the thimble to compress, the thimble on a line body is made to contact with the carrier board, conduction between the test pencil and the product to be tested is realized, and the test thimble on the line body is connected with a test computer corresponding to the station through the pencil, so as to realize conduction between the test computer and the product. And after the wire body detects that the positioning of the D14 process carrier plate is finished, issuing a test starting instruction to a test computer, automatically testing the test computer according to a program, outputting an effective level to an input pin corresponding to the product by the test computer during switching value test, inquiring whether a corresponding pin input signal is effective from the product through a CAN (controller area network) bus, if so, judging that the switching value test is passed, and if the result fed back by the product is not in accordance with the expectation, judging that the switching value test is not passed. After all the test items pass the detection, the procedure is judged to be qualified, the jacking positioning device at the D14 station descends, when the Z15F position has no signal, the Z14 stops descending, and the carrier plate automatically enters the D15 procedure preparation position. When the line detects that the D15 procedure is idle, the Z15F stops descending, the carrier plate carries a product to be detected to enter a D15 station, after a signal is sensed by the Z15, the line controls the D15 jacking and positioning device to ascend, after the carrier plate is positioned, the line issues a test starting instruction to the test computer, the test computer performs automatic test according to a program, during radio frequency signal test, the test computer outputs a designated radio frequency signal to the product, then inquires the signal strength detected by the product through a CAN bus, if the difference value of the product feedback strength and the given strength is within a certain range, the radio frequency signal is judged to pass detection, and if the difference value is not judged to pass detection. After all the test items pass the detection, the procedure is judged to be qualified, the jacking positioning device at the D15 station descends, when the Z16F position has no signal, the Z15 stops descending, and the carrier plate automatically enters the D16 procedure. When the line body detects that a D16 station is idle, a Z15 block descending, a carrier plate carries a product to be tested to enter a D16 station, a Z16 block senses signals, the line body controls a D16 jacking positioning device to ascend, after the carrier plate is positioned, the line body sends a test starting instruction to a test computer, the test computer performs static current test according to a program, an operator connects video input and output wire harnesses to the product to be tested, after the static current test is completed, the product is started automatically, the operator inputs results of manual test items to test equipment, when the test results of the station and the test results of D14 and D15 procedures are qualified, a test software controls a printer to print qualified labels, if the product test is unqualified, unqualified information is printed, the labels are manually pasted on the product, all the wire harnesses are pulled out, and a release button is pressed down, so that the product flows into a next sequence. When the intelligent cabin product is produced, the processes D17-D20 are not used, and the carrier plate enters the left side transverse moving table after being blocked by the corresponding station. The packaging station is arranged above the left side transverse moving table board.

The carrier plate 100 of the embodiment of the utility model is provided with an angle adjusting component 101 capable of adjusting the inclination angle of a product to be measured and a clamping component 102 capable of fixing the product to be measured, the clamping component 102 is provided with a clamping interval 103 capable of adjusting the size according to the size of the product, and an assembly interval 104 of the product to be measured is arranged between the angle adjusting component 101 and the clamping component 102. In this embodiment, the inclination angle of the product to be measured can be adjusted through the angle adjusting assembly 101, so that the product to be measured is lifted to a certain height, the display surface of the product to be measured is in the optimal observation visual angle range of an operator, the operator can conveniently detect the product to be measured, and in addition, the clamping assembly 102 can ensure that the carrier plate cannot slide in the process of transporting the product to be measured, so that the conveying stability is improved. Specifically, the product to be tested is disposed between the angle adjusting assembly 101 and the clamping assembly 102, with a sufficient assembly space. After the product is placed, the pitching angle of the product to be detected is adjusted through the angle adjusting assembly 101, so that the operator can conveniently conduct power-on detection operation. The clamping assembly 102 can stably arrange the product to be detected in the assembly area 104, and can prevent the product to be detected from falling off during the operation of the carrier plate. The conductive strips 113, 114 and 115 at the bottom of the carrier plate are in contact with the conductive grooves of the wire body, so that a product to be tested can be in current circulation with the carrier plate, and the carrier plate can be accurately positioned at a detection station due to the positioning holes 204 and the positioning pins 205, so that the functional test of the product is completed through the carrier plate, and a test result can be output through the carrier plate. On the whole, the carrier plate circularly flows on the production line, when the carrier plate flows to the assembly station, manual work is performed on the carrier plate for assembly, after assembly is completed, products flow into the manual detection station along with the carrier plate, an operator is connected with a wire harness for test operation, after manual test is completed, the products flow into the automatic detection station, and full-function test is realized through the bottom ejector pin 206.

Further, the angle adjusting assembly 101 includes a supporting rod 105 for supporting the product to be tested and an angle adjusting groove 106 formed by downward sinking on the carrier plate 100, the angle adjusting groove 106 has a fixing position for the supporting rod 105 to be clamped into when being lifted up to stabilize the current posture of the supporting rod 105, and when the supporting rod 105 is not lifted up, the supporting rod 105 is embedded into the angle adjusting groove 106. In this embodiment, the angle adjusting assembly 101 is detailed, the supporting rod 105 is used to support the product to be measured, and the supporting rod 105 can be locked in the fixing position of the angle adjusting groove 106 after being supported. When the product to be tested is not supported, the supporting rod 105 can be inserted into the angle adjusting groove 106, so that the surface of the carrier board 100 is flat. During assembly, the support rod 105 is hidden in the corresponding groove of the support plate, and the upper part of the support rod is in a flat state, so that the assembly of a product is not influenced; when the screen products are tested manually, the supporting rod 105 is lifted, the two sides of the supporting rod are clamped into the angle adjusting grooves 106 corresponding to the supporting feet, the front end of the product is placed on the supporting rod 105, and the rear end of the product is placed on the carrier plate, so that the screen of the product is perpendicular to the visual angle direction of an operator, and the test is facilitated. The angle adjustment groove 106 is composed of three continuous slots, and the supporting legs are clamped into different slots to realize different angle adjustments.

Further, the clamping assembly 102 includes a clamping sliding groove 107, a fixed clamping block 108 fixed on the clamping sliding groove 107, and a sliding clamping block 109 slidably disposed on the sliding groove, and the clamping area 103 is between the fixed clamping block 108 and the sliding clamping block 109. In this embodiment, the clamping assembly 102 is detailed above, and the clamping is realized by the cooperation of the fixed clamping block 108 and the sliding clamping block 109, and the sliding clamping block 109 can slide on the clamping chute 107.

Further, a stop block 110 is disposed at a side edge of the carrier plate 100. In the embodiment, the blocking block 110 is provided, the carrier plate can block and collide with the station when moving and flowing on the line body, and the blocking block 110 can prevent the carrier plate from being deformed by collision.

Further, the carrier board further includes a wire harness fixing block 111 for temporarily fixing a wire harness during assembly, and the wire harness fixing block 111 is disposed outside the assembly region 104 of the carrier board 100. During assembly, fix the pencil in the pencil storage block hole, reserve operating space for the assembly, during the test, take out the pencil from the fixed block.

Further, the carrier board 100 further has a pin contact 112 for electrically connecting an external testing device. In the present embodiment, the pin contacts 112 are fixed on the carrier, the contacts are distributed on the upper and lower sides of the carrier, and are made of conductive copper material, each pin contact 112 is connected to the pins of the front signal adapter 122 in a one-to-one correspondence manner, and each pin contact 112 is connected to the pin 206 of the wire body in a one-to-one correspondence manner.

Further, the carrier board further includes a first conductive strip 113 connected to the positive electrode of the line body power supply, a second conductive strip 114 connected to the negative electrode of the line body power supply, and a third conductive strip 115 connected to the electrostatic ground of the line body power supply, where the first conductive strip 113, the second conductive strip 114, and the third conductive strip 115 are all slidably connected to the conductive slot on the line body. In this embodiment, the first conductive strip 113, the second conductive strip 114, and the third conductive strip 115 are respectively connected to the positive electrode and the negative electrode of the line power supply, and the three conductive strips are always in sliding connection with the conductive grooves on the line when the carrier plate slides on the assembly line, so that uninterrupted power taking of the product on the assembly line is realized, and the startup time is saved.

Further, the carrier 100 is further provided with a plurality of guiding positioning holes 204 for positioning, and each guiding positioning hole 204 is distributed at a corner of the carrier 100. In this embodiment, the guiding positioning holes 204 correspond to the positioning pins 205 of the wire body one-to-one, when the blocking block 110 collides with the blocking block, the carrier plate is blocked and cannot be moved backward, at this time, the bottom jacking positioning cylinder 202 rises to drive the thimble 206 and the positioning pin 205 to rise, the upper portion of the positioning pin 205 is conical, the lower portion of the positioning pin 205 is cylindrical, the diameter of the positioning pin is close to that of the positioning hole, during the rising process, the head of the positioning pin 205 enters the guiding hole to drive the fine adjustment position of the carrier plate, after the lifting by a certain distance, the bottom of the cone of the positioning pin 205 is exactly matched with the guiding positioning hole 204 in place, so that the positioning hole and the positioning pin 205 are concentrically positioned, and the jacking positioning cylinder 202 further rises to drive the carrier plate to rise.

Further, the lateral side of the carrier 100 has a limiting groove 117 for limiting the ascending degree thereof. In this embodiment, when the carrier plate ascends to a certain extent, the limiting groove 117 contacts with the line body limiting stop, so as to prevent the carrier plate from further ascending and fix the carrier plate.

Further, an antistatic flexible protective layer 118 is laid on the carrier board 100. In this embodiment, the surface of the soft material has a large friction force, and the soft material is attached to the carrier plate, so that the product is prevented from sliding off during conveying along with the carrier plate, and the surface of the product can be prevented from being scratched in the detection process.

Further, the carrier 100 is provided with a sound transmitting hole 119. In this embodiment, a sound pickup module is arranged inside, and a horn mouth of the product is placed in alignment with the sound transmission hole 119, so that during detection, a horn is picked up for sound reproduction, and a sound recording and reproduction function test is realized.

Further, the carrier board 100 is provided with a power control key 120. In this embodiment, the power control button 120 is a power supply switch for the carrier board, and when the manual test needs to be powered off, the power of the product is turned off or restarted by the button, so that the plugging and unplugging of the connector are avoided.

Further, the carrier board 100 is provided with a three-in-one antenna 121. In this embodiment, the three-in-one antenna 121 is fixed on the carrier board and circulates along with the carrier board, so as to provide network and positioning signals when testing products with positioning and networking functions.

Further, the carrier board 100 is provided with a signal adapter socket 122. In this embodiment, the signal adapter 122 is a universal socket, and different adapter lines are replaced according to different tested products, so as to realize electrical signal connection between the same carrier board and different products; each signal line of the adapter socket is communicated with the thimble contact 112 at the bottom of the carrier plate, and during testing, the input and output signals are connected to the carrier plate through a wiring harness, and then the thimble contact 112 and the thimble 206 at the bottom of the carrier plate are connected to testing equipment, so that testing of different products is realized.

The power supply control circuit comprises a power supply main switch, an alternating current contactor, a frequency converter air switch control circuit, a private air switch control circuit and an external power supply air switch control circuit. 380V alternating current is input from QF01, and the air switch power supply at the rear end QF 03-QF 07 is controlled by an alternating current contactor. The S01 emergency stop switch and the S02 key switch are control switches of the alternating current contactor, the S01 and the S02 are simultaneously switched on, and the alternating current contactor KM01 is controlled to be switched on to supply power for the later stage.

The PLC control circuit comprises 1 CPU 1510SP-1, 5 substation control modules IM1556PNST, 13 8-channel DI input modules (DI8x24VDC/NPN input), 35 DO output modules (DQ16x24VDC/0.5AST), 1 232 communication module (PtPRS232), 1 Ethernet switch and 1 compact panel KTP 1200. Because assembly line length ratio is longer, simultaneously in order to reduce the degree of difficulty of wiring, change other centralized control mode, adopt the distributed control mode, main thinking is: the 1-channel PLC main CPU and the 5-channel substation control module (IM1556PNST) respectively control corresponding input and output circuits to control, and the main station and the substations are connected through network cables and communicate data.

This embodiment has that the carrier block device 42 way, blocks solenoid valve 42 way, jacking positioner 20 way, positioning solenoid valve 20 way, and PLC control circuit is used for controlling 20 station cylinders of assembly line lift, cylinder motion state feedback, key input detection, pilot lamp output control etc..

The utility model solves the problem of automatic detection of intelligent cabin products. Through the functional analysis to product in the passenger cabin, the detection station covers whole passenger cabin detection items to do the reservation on this basis, can go on through full automatization detection item with the detection item that 3 ~ 4 people could accomplish earlier stage.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (6)

1. An audio function test circuit, comprising: including data acquisition card, signal generator and host computer carry out the communication, signal generator is used for producing corresponding frequency broadcast signal, transmits broadcast signal for the product that awaits measuring through the radio reception antenna, the product that awaits measuring is used for receiving broadcast signal, turns into voltage signal with current signal through the load, keeps apart to transmit voltage signal for data acquisition card through isolation transformer and carries out voltage sampling, data acquisition card and host computer connection.

2. The audio function test circuit of claim 1, wherein: two output ends of each power amplifier output channel of the product to be detected are respectively connected with two input ends of an isolation transformer, one output end of the isolation transformer is connected to a ground terminal, and the other output end of the isolation transformer is connected with the input end of a data acquisition card.

3. The audio function test circuit of claim 1, wherein: one end of the load is connected with one output end of the power amplifier output channel of the product to be tested, and the other end of the load is connected with the other output end of the power amplifier output channel of the product to be tested.

4. The utility model provides an intelligence passenger cabin product function detecting system which characterized in that: the intelligent cockpit audio testing device comprises an upper computer, a load output function testing circuit and an audio function testing circuit according to any one of claims 1 to 3, wherein the load output function testing circuit comprises an industrial control board card and an electronic load, the electronic load is communicated with the upper computer, each load output end of an intelligent cockpit product to be tested is connected with the electronic load through each electronic switch, the electronic switch is connected with the industrial control board card, and the industrial control board card is connected with the upper computer.

5. The intelligent cabin product function detection system of claim 4, wherein: the electronic switch is a relay, the industrial control board card is used for controlling the energization or the outage of a coil of the relay, and a contact of the relay is connected between the electronic load and each load output end of the intelligent cabin product to be tested.

6. The intelligent cabin product function detection system of claim 4, wherein: still include wireless signal function test circuit, wireless signal function test circuit includes wireless signal generator, and wireless signal generator is used for producing wireless signal, the host computer passes through bus connection with the intelligent passenger cabin product that awaits measuring, and the host computer is used for sending the CAN instruction and gives the intelligent passenger cabin product that awaits measuring, opens corresponding function, and the intelligent passenger cabin product that awaits measuring is used for resolving wireless signal to pass through the CAN bus with the signal strength index and feed back to the host computer, realize the detection of passenger cabin wireless signal function.

Images