CN212990674U - Elevator voice broadcast circuit, device and instruction board in sedan-chair - Google Patents
Elevator voice broadcast circuit, device and instruction board in sedan-chair Download PDFInfo
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- CN212990674U CN212990674U CN202021675724.3U CN202021675724U CN212990674U CN 212990674 U CN212990674 U CN 212990674U CN 202021675724 U CN202021675724 U CN 202021675724U CN 212990674 U CN212990674 U CN 212990674U
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Abstract
The utility model relates to an elevator technical field especially relates to an instruction board in elevator voice broadcast circuit, device and sedan-chair. The circuit comprises: the main control module receives first voice data through the first burning port and outputs the first voice data to the voice decoding module; the voice decoding module stores first voice data; the main control module sends a voice control signal to the voice decoding module; the voice decoding module generates a pulse width modulation signal according to the voice control signal and the first voice data and outputs the pulse width modulation signal to the filtering module; the filtering module carries out filtering processing on the pulse width modulation signal to generate a voice analog signal; the power amplification module amplifies the voice analog signal and outputs the amplified voice analog signal to the loudspeaker so as to drive the loudspeaker to produce sound. According to the circuit, the burning port is arranged on the main control module to store data in the voice decoding module, so that the main control module does not need an external SD card, and the problems that the SD card is easy to lose and the card slot is easy to lose in the prior art are solved.
Description
Technical Field
The utility model relates to an elevator technical field especially relates to an instruction board in elevator voice broadcast circuit, device and sedan-chair.
Background
In order to increase the experience of taking the elevator and feel, the integrated voice broadcast function of car is indispensable, and the voice broadcast function mainly integrates in the sedan-chair on the instruction board, perhaps adopts dedicated pronunciation to report to the throne ware.
Although the integrated voice broadcast scheme of instruction board can reach the voice broadcast function in current sedan-chair, nevertheless have following shortcoming: when in site remanufacturing, different burning tools are needed to burn a main program to the main control chip and the voice content to the SD card respectively, and whether the voice content is correct or not can not be detected through a testing tool in the production stage of the single board; the SD card is easy to lose in the field use process, and the SD card slot is easy to damage; the occupied CPU resource is high, the cost is relatively high, and two power supplies are needed for supplying power.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main mesh provides an instruction board in elevator voice broadcast circuit, device and sedan-chair, aims at solving the technical problem that voice broadcast SD card loses easily and the draw-in groove damages in the current sedan-chair.
In order to achieve the above object, the utility model provides an elevator voice broadcast circuit, elevator voice broadcast circuit includes: the voice decoding module is connected with the main control module; the output end of the main control module is connected with the input end of the voice decoding module, the output end of the voice decoding module is connected with the input end of the filtering module, the output end of the filtering module is connected with the input end of the power amplification module, the output end of the power amplification module is connected with the input end of the loudspeaker, and the main control module comprises a first burning port;
the main control module is used for receiving first voice data through the first burning port and outputting the first voice data to the voice decoding module;
the voice decoding module is used for receiving the first voice data and storing the first voice data;
the main control module is also used for sending a voice control signal to the voice decoding module;
the voice decoding module is further configured to receive the voice control signal, generate a pulse width modulation signal according to the voice control signal and the first voice data, and output the pulse width modulation signal to the filtering module;
the filtering module is used for filtering the pulse width modulation signal to generate a voice analog signal and outputting the voice analog signal to the power amplification module;
and the power amplification module is used for amplifying the voice analog signal and outputting the amplified voice analog signal to the loudspeaker so as to drive the loudspeaker to produce sound.
Optionally, the voice decoding module includes a second burning port;
the voice decoding module is further used for receiving first voice data through the second burning port and storing the first voice data.
Optionally, the voice decoding module includes a FLASH memory, and the FLASH memory is used for storing the first voice data.
Optionally, the main control module includes a first serial interface, and the speech decoding module includes a second serial interface;
the main control module is further configured to send the first voice data to the voice decoding module through the first serial interface;
the voice decoding module is further configured to receive the first voice data through the second serial interface, and store the first voice data.
Optionally, the control end of the main control module is connected to the controlled end of the power amplifier module, and the main control module is further configured to send a shutdown enable signal to the power amplifier module, so that the power amplifier module stops working.
Optionally, an input end of the voice decoding module is connected to the first power supply end, an input end of the main control module is connected to the second power supply end, one end of the power amplifier module is connected to the third power supply end, and the power supply voltages of the first power supply end, the second power supply end and the third power supply end are the same.
Optionally, the main control module, the voice decoding module and the power amplifier module are attached to a circuit board.
Optionally, the filtering module includes a first filtering circuit and a second filtering circuit, an input end of the first filtering circuit is connected to an output end of the voice decoding module, an output end of the first filtering circuit is connected to an input end of the power amplifier module, an input end of the second filtering circuit is connected to an output end of the power amplifier module, and an output end of the second filtering circuit is connected to the speaker.
Furthermore, for realizing the above object, the utility model also provides an elevator voice broadcast device, elevator voice broadcast device contains like the above elevator voice broadcast circuit.
Furthermore, for realizing the above object, the utility model also provides an instruction board in the sedan-chair, instruction board contains as above elevator voice broadcast device in the sedan-chair.
The utility model provides an elevator voice broadcast circuit, elevator voice broadcast circuit includes: the voice decoding module is connected with the main control module; the output end of the main control module is connected with the input end of the voice decoding module, the output end of the voice decoding module is connected with the input end of the filtering module, the output end of the filtering module is connected with the input end of the power amplification module, the output end of the power amplification module is connected with the input end of the loudspeaker, and the main control module comprises a first burning port; the main control module is used for receiving first voice data through the first burning port and outputting the first voice data to the voice decoding module; the voice decoding module is used for receiving the first voice data and storing the first voice data; the main control module is also used for sending a voice control signal to the voice decoding module; the voice decoding module is further configured to receive the voice control signal, generate a pulse width modulation signal according to the voice control signal and the first voice data, and output the pulse width modulation signal to the filtering module; the filtering module is used for filtering the pulse width modulation signal to generate a voice analog signal and outputting the voice analog signal to the power amplification module; and the power amplification module is used for amplifying the voice analog signal and outputting the amplified voice analog signal to the loudspeaker so as to drive the loudspeaker to produce sound. The circuit is characterized in that the burning port is arranged on the main control module to store data in the voice decoding module, so that the main control module does not need an external SD card, the port resource of the main control module is saved, the problems that the SD card is easy to lose and the clamping groove is easy to lose are solved, the number of devices is reduced, the SD card is not required to be manually placed, the manufacturability is enhanced, and the cost price is also greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first embodiment of the elevator voice broadcasting circuit of the present invention;
fig. 2 is the utility model discloses the structure schematic diagram of elevator voice broadcast circuit second embodiment.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Main control module | 101 | A |
| 200 | |
201 | |
| 300 | |
301 | |
| 400 | |
302 | |
| 500 | Loudspeaker |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and is not within the protection scope of the present invention.
It should be noted that, in the practical application of the present invention, the software program is inevitably applied to the software program, but the applicant states here that the software program applied in the embodiment of the present invention is the prior art, and in the present application, the modification and protection of the software program are not involved, but only the protection of the hardware architecture designed for the purpose of the invention.
The utility model provides an elevator voice broadcast circuit refers to fig. 1, and fig. 1 is the utility model discloses the structure schematic diagram of the first embodiment of elevator voice broadcast circuit.
The elevator voice broadcast circuit includes: the voice decoder comprises a main control module 100, a voice decoding module 200, a filtering module 300 and a power amplifier module 400; the output end of the main control module 100 is connected to the input end of the speech decoding module 200, the output end of the speech decoding module 200 is connected to the input end of the filtering module 300, the output end of the filtering module 300 is connected to the input end of the power amplification module 400, the output end of the power amplification module 400 is connected to the input end of the loudspeaker 500, and the main control module 100 includes a first burning port 101.
The main control module 100 is configured to receive first voice data through the first burning port 101, and output the first voice data to the voice decoding module.
It should be noted that the main control module 100 may be a Central Processing Unit (CPU). The elevator voice broadcasting circuit can be used for an instruction board or a voice broadcasting station in a car of an elevator. In this embodiment, an instruction board in a car is taken as an example for explanation, and before the instruction board in the car leaves a factory or when the instruction board in the car needs to be upgraded, a technician may input the first voice data into the main control module through a burning interface.
The voice decoding module 200 is configured to receive the first voice data and store the first voice data.
It is easy to understand that, a communication connection is established between the voice decoding module 200 and the main control module 100, the voice decoding module 200 may be a voice decoding chip with a memory arranged inside, the memory may be a FLASH memory, the FLASH memory supports erasing and writing of voice data, and the FLASH memory stores the first voice data.
The main control module 100 is further configured to send a voice control signal to the voice decoding module 200.
It is readily understood that in elevator operation, for example: when the elevator reaches a certain floor, the elevator detects that the current floor is an N floor, the floor information is converted into an electric signal and is output to the main control module 100, and the main control module 100 sends a voice control signal to the voice decoding module 200 according to the electric signal.
The voice decoding module 200 is further configured to receive the voice control signal, generate a pulse width modulation signal according to the voice control signal and the first voice data, and output the pulse width modulation signal to the filtering module.
It is easy to understand that, after receiving the voice control signal, the voice decoding module 200 decodes the voice control signal to obtain a corresponding voice control instruction, calls stored voice data according to the voice control instruction, and generates a pulse width modulation signal according to the voice data.
The filtering module 300 is configured to filter the pulse width modulation signal to generate a voice analog signal, and output the voice analog signal to the power amplifier module 400.
It is easy to understand that the speech decoding module 200 outputs a speech signal in the form of differential PWM (Pulse width modulation), and the filtering module 200 performs filtering processing on the Pulse width modulation signal to generate a continuous analog quantity, i.e. the speech analog signal.
The power amplifier module 400 is configured to amplify the voice analog signal, and output the amplified voice analog signal to the speaker 500 to drive the speaker 500 to sound.
It is easy to understand that the power amplifier module 400 amplifies the voice analog signal, and after amplification, the amplified voice analog signal may be filtered again and then output to the speaker 500. In specific implementations, for example: the elevator reachs a certain floor, according to speech control signal speech decoding module 200 acquires the speech data that the floor of storage corresponds, has generated corresponding voice analog signal through filtering and power amplifier to the speaker sound production of instruction board is reported in making the sedan-chair: layer N is reached. After the elevator is closed, the elevator car moves upwards, the motion and the motion speed of the elevator are detected according to a sensor in the elevator, a corresponding electric signal is sent to the main control module 100, the main control module 100 receives the electric signal and sends a voice control signal to the voice decoding module 200, so that the voice decoding module generates a corresponding pulse width modulation signal according to voice data of 'elevator ascending', and finally drives the loudspeaker 500 to send out a prompt tone of 'elevator ascending'. In an embodiment, more alert tones may be included, and the embodiment does not limit this.
This embodiment sets up on host system and burns the mouth through above-mentioned circuit in order to with data storage in the speech decoding module for host system need not external SD card, has practiced thrift host system's port resource, has also solved the easy problem of losing of SD card, the easy loss of draw-in groove, reduces device quantity, need not manually place the SD card, and manufacturability reinforcing, cost price is greatly reduced also.
Based on the utility model discloses a first embodiment provides the utility model discloses elevator voice broadcast circuit's second embodiment refers to fig. 2. Fig. 2 is the utility model discloses the structure schematic diagram of elevator voice broadcast circuit second embodiment.
The voice decoding module 200 includes a second burning port 201; the voice decoding module 200 is further configured to receive first voice data through the second recording port 201, and store the first voice data. The voice decoding module 200 includes a FLASH memory, and the FLASH memory is used for storing the first voice data.
It is easy to understand that the voice decoding module 200 includes a FLASH memory and a burning port, and voice data burned through the burning port can be directly stored in the FLASH memory.
The main control module 100 includes a first serial interface (not shown in the drawings, but does not affect the explanation of the embodiment), and the speech decoding module 200 includes a second serial interface (not shown in the drawings, but does not affect the explanation of the embodiment); the main control module 100 is further configured to send the first voice data to the voice decoding module 200 through the first serial interface; the voice decoding module 200 is further configured to receive the first voice data through the second serial interface, and store the first voice data.
It should be understood that, by providing a serial interface, the main control module 100 and the speech decoding module 200 can directly communicate through a serial UART (Universal Asynchronous Receiver Transmitter). In the concrete implementation, only need to occupy two port resources of main control chip and can satisfy the control of voice decoding chip, practice thrift main control chip port resource in a large number, voice decoding chip can support different voice version identities to read simultaneously, thereby can check that the pronunciation file of burning record is correct or not, because voice decoding chip supports UART mouth renewal voice file, so can burn record pronunciation file (the main chip plays the unvarnished transmission function) for voice decoding chip through the main chip, thereby realize that main control chip updates the main procedure and voice decoding chip updates the pronunciation file and all passes through the UART mouth of main control chip, finally realize the unity of burning record frock.
It is easy to understand that, because the voice decoding module 200 is also provided with a burning port, the elevator voice broadcasting circuit has two modes of burning voice data. For example: before leaving the factory, uniformly setting the instruction board in the elevator car, and recording programs and voice data for the elevator voice broadcasting circuit through the recording port of the main control module 100; in the using process, if only the voice file needs to be replaced, the voice data is directly burned through the burning port of the voice decoding module 200.
The control end of the main control module 100 is connected to the controlled end of the power amplifier module 400, and the main control module 100 is further configured to send a shutdown enable signal to the power amplifier module 400, so that the power amplifier module 400 stops working.
It is easy to understand that the main control module 100 can also control the power amplifier size of the power amplifier module 400 through the control end, so as to adjust the sound output by the speaker 500.
An input end of the voice decoding module 200 is connected to a first power supply end (not shown in the drawings, but does not affect the explanation of the embodiment), an input end of the main control module 100 is connected to a second power supply end (not shown in the drawings, but does not affect the explanation of the embodiment), one end of the power amplifier module 400 is connected to a third power supply end (refer to +5V in fig. 2), and the power supply voltages of the first power supply end, the second power supply end, and the third power supply end are the same.
It is easy to understand that the drawings of the present embodiment are only for reference, and the supply voltage of the power supply terminal in the specific implementation can be 5V or 3.3V. Because the required power supply voltages of the voice decoding module 200, the main control module 100 and the power amplifier module 400 are the same, the voice broadcasting circuit of the elevator can use the same power supply to supply power uniformly.
The main control module 100, the voice decoding module 200 and the power amplifier module 400 are attached to a circuit board.
It is easy to understand that all chip-resistor-chip capacitors in the main control module 100, the voice decoding module 200, the power amplifier module 400 and the circuit are patch devices, so that the number of devices can be reduced, and the wiring space can be saved.
The filtering module 300 comprises a first filtering circuit 301 and a second filtering circuit 302, the input end of the first filtering circuit 301 is connected with the output end of the voice decoding module 200, the output end of the first filtering circuit 301 is connected with the input end of the power amplifier module 400, the input end of the second filtering circuit 302 is connected with the output end of the power amplifier module 400, and the output end of the second filtering circuit 302 is connected with the loudspeaker 500.
The utility model also arranges a burning port on the voice decoding module through the circuit, so as to realize the unification of burning; the plurality of modules adopt the same power supply voltage for power supply, so that the circuit only needs the same power supply for unified power supply; the main control module is communicated with the voice decoding module in a serial port mode, so that port resources of the main control module are saved; and the patch type device is used, so that the cost is reduced, and the space is saved.
Furthermore, for realizing the above object, the utility model also provides an elevator voice broadcast device, elevator voice broadcast device contains like the above elevator voice broadcast circuit.
The elevator voice broadcasting device can be arranged in a car of an elevator instruction board or an elevator voice broadcasting station, and can be replaced and detached, so that workers can conveniently install the elevator voice broadcasting device.
Because this elevator voice broadcast device has adopted the whole technical scheme of above-mentioned all embodiments, consequently have all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, no longer give unnecessary details here.
Furthermore, for realizing the above object, the utility model discloses still provide an instruction board in the sedan-chair, instruction board contains as above elevator voice broadcast device in the sedan-chair.
Since the instruction board in the car adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.
It should be understood that the above is only an example, and the technical solution of the present invention is not limited in any way, and in the specific application, those skilled in the art can set the solution as required, and the present invention is not limited thereto.
It should be noted that the above-described work flow is only illustrative, and does not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to practical needs, and the present invention is not limited herein.
In addition, the technical details that do not describe in this embodiment in detail can be seen in the elevator voice broadcast circuit that any embodiment of the present invention provides, and are not described here again.
Further, it is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above embodiment numbers of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. The elevator voice broadcasting circuit is characterized by comprising: the voice decoding module is connected with the main control module; the output end of the main control module is connected with the input end of the voice decoding module, the output end of the voice decoding module is connected with the input end of the filtering module, the output end of the filtering module is connected with the input end of the power amplification module, the output end of the power amplification module is connected with the input end of the loudspeaker, and the main control module comprises a first burning port;
the main control module is used for receiving first voice data through the first burning port and outputting the first voice data to the voice decoding module;
the voice decoding module is used for receiving the first voice data and storing the first voice data;
the main control module is also used for sending a voice control signal to the voice decoding module;
the voice decoding module is further configured to receive the voice control signal, generate a pulse width modulation signal according to the voice control signal and the first voice data, and output the pulse width modulation signal to the filtering module;
the filtering module is used for filtering the pulse width modulation signal to generate a voice analog signal and outputting the voice analog signal to the power amplification module;
and the power amplification module is used for amplifying the voice analog signal and outputting the amplified voice analog signal to the loudspeaker so as to drive the loudspeaker to produce sound.
2. The elevator voice broadcasting circuit according to claim 1, wherein the voice decoding module comprises a second burning port;
the voice decoding module is further used for receiving first voice data through the second burning port and storing the first voice data.
3. The elevator voice broadcasting circuit according to claim 2, wherein the voice decoding module comprises a FLASH memory, and the FLASH memory is used for storing the first voice data.
4. The elevator voice broadcast circuit of claim 3, wherein the main control module comprises a first serial interface, and the voice decoding module comprises a second serial interface;
the main control module is further configured to send the first voice data to the voice decoding module through the first serial interface;
the voice decoding module is further configured to receive the first voice data through the second serial interface, and store the first voice data.
5. The elevator voice broadcast circuit of claim 4, wherein the control end of the main control module is connected to the controlled end of the power amplifier module, and the main control module is further configured to send a shutdown enable signal to the power amplifier module, so that the power amplifier module stops working.
6. The elevator voice broadcasting circuit according to any one of claims 1 to 5, wherein an input end of the voice decoding module is connected to a first power supply end, an input end of the main control module is connected to a second power supply end, one end of the power amplifier module is connected to a third power supply end, and power supply voltages of the first power supply end, the second power supply end and the third power supply end are the same.
7. The elevator voice broadcasting circuit according to claim 6, wherein the main control module, the voice decoding module and the power amplifier module are attached to a circuit board.
8. The elevator voice broadcasting circuit according to claim 7, wherein the filter module comprises a first filter circuit and a second filter circuit, an input end of the first filter circuit is connected with an output end of the voice decoding module, an output end of the first filter circuit is connected with an input end of the power amplifier module, an input end of the second filter circuit is connected with an output end of the power amplifier module, and an output end of the second filter circuit is connected with the speaker.
9. An elevator voice broadcasting device, characterized in that the elevator voice broadcasting device comprises the elevator voice broadcasting circuit according to any one of claims 1 to 8.
10. An in-car command board, characterized in that, the in-car command board contains the elevator voice broadcast device of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021675724.3U CN212990674U (en) | 2020-08-12 | 2020-08-12 | Elevator voice broadcast circuit, device and instruction board in sedan-chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021675724.3U CN212990674U (en) | 2020-08-12 | 2020-08-12 | Elevator voice broadcast circuit, device and instruction board in sedan-chair |
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| Publication Number | Publication Date |
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| CN212990674U true CN212990674U (en) | 2021-04-16 |
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| CN202021675724.3U Active CN212990674U (en) | 2020-08-12 | 2020-08-12 | Elevator voice broadcast circuit, device and instruction board in sedan-chair |
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