Intercom for hetero-frequency relay vehicle

Abstract

The utility model provides a kind of intercom of different frequency relay vehicle, it is related to intercom field, including host computer, host computer shell, intercom panel assembly and relay component, host computer is detachably set on host computer shell or detachably set on relay component, intercom panel assembly is detachably set on host computer shell, host computer includes the first branch of processing VHF signal, the second branch of processing UHF signal and the main controller of respectively control first, second branch connection to realize different frequency relay, intercom panel assembly has first controller, relay component has second controller, as intercom, host computer is set on host computer shell, intercom panel assembly is set on host computer shell and first controller is connected with main controller, as relay station, host computer is set on relay component and second controller is connected with main controller. Different frequency relay can be realized, more rich in function, lower in cost.

Description

Technical Field

[0001] This utility model relates to the field of walkie-talkies, and in particular to a vehicle-mounted walkie-talkie with a different frequency repeater. Background Technology

[0002] With the development of the walkie-talkie industry, walkie-talkies are being used in increasingly wider applications, playing a vital role in various security operations. The repeater function acts as a transmitter, increasing the signal propagation range of walkie-talkies. Most walkie-talkie repeaters use the same frequency for relaying, primarily operating in the UHF (400MHz~480MHz) and VHF (136MHz~174MHz) bands. For cross-frequency repeating, two walkie-talkies on different frequency bands are required. One walkie-talkie receives the signal from its corresponding band and transmits it to the other, which then converts the signal to the other band before transmitting. This requires two antennas and a connecting cable, as well as separate pre-settings for each walkie-talkie, increasing costs. Summary of the Invention

[0003] The main purpose of this invention is to propose a vehicle-mounted walkie-talkie with inter-frequency repeater capability, which can achieve inter-frequency repeater capability with a single device and reduce costs.

[0004] This utility model is achieved through the following technical solution: A cross-frequency repeater vehicle-mounted walkie-talkie includes a main unit, a main unit housing, a walkie-talkie panel assembly, and a repeater assembly. The main unit is detachably mounted on the main unit housing or detachably mounted on the repeater assembly. The walkie-talkie panel assembly is detachably mounted on the main unit housing. The main unit includes a first branch for processing VHF signals, a second branch for processing UHF signals, and a main controller that controls the connection of the first and second branches to achieve cross-frequency repeating. The walkie-talkie panel assembly has a first controller, and the repeater assembly has a second controller. When used as a walkie-talkie, the main unit and the walkie-talkie panel assembly are mounted on the main unit housing, and the first controller is connected to the main controller. When used as a repeater, the main unit is mounted on the repeater assembly, and the second controller is connected to the main controller. It can be used as both a walkie-talkie and a repeater, integrating two frequencies into a single unit. When used as a walkie-talkie, it can independently receive information from both frequency bands; when used as a repeater, it can achieve cross-frequency repeating, offering richer functionality and lower cost.

[0005] Furthermore, the host also includes an audio amplification unit. The first branch includes a VHF transceiver switch, a VHF receiving unit, a first audio processor, a VHF frequency synthesis unit, and a VHF transmitting unit connected in sequence. The second branch includes a UHF transceiver switch, a UHF receiving unit, a second audio processor, a UHF frequency synthesis unit, and a UHF transmitting unit connected in sequence. The main controller is connected to the first and second audio processors respectively to control the output signal of the first audio processor to be input to the second audio processor, or to control the output signal of the second audio processor to be input to the first audio processor, so as to realize inter-frequency relay, or to control the output signals of the first and second audio processors to be input to the audio amplification unit, so as to realize dual-band reception of the vehicle-mounted walkie-talkie. The circuit design is reasonable and reliable.

[0006] Furthermore, the host also includes a microphone, a UHF speaker, and a VHF speaker. The UHF and VHF speakers are respectively connected to the output of the audio amplification unit, and the microphone output is respectively connected to the first and second audio processors. The two speakers can independently play information in their respective frequency bands, making them more convenient to use.

[0007] Furthermore, the main unit housing includes a front housing, which is detachably connected to the walkie-talkie panel assembly via a first connecting mechanism. The first connecting mechanism includes a guide and fixing mechanism and a snap-fit ​​mechanism disposed between the front housing and the walkie-talkie panel assembly. The walkie-talkie panel assembly moves relative to the front housing using the guide and fixing mechanism. When it can no longer move, the walkie-talkie panel assembly moves laterally until it can no longer move due to the action of the guide and fixing mechanism. At this point, the walkie-talkie panel assembly is snap-fitted and fixed to the front housing using the snap-fit ​​mechanism. This facilitates switching between the walkie-talkie and repeater, improving the user experience.

[0008] Furthermore, the main unit's front housing includes two opposing side panels and a front panel disposed between the two side panels. The guiding and fixing mechanism includes fixing ribs respectively disposed on the inner sides of the two side panels, a vertical plate disposed on the walkie-talkie panel assembly, a horizontal plate disposed on the vertical plate, and a guide plate disposed on the horizontal plate and extending relative to the main unit's front housing. When the walkie-talkie panel assembly moves relative to the main unit's front housing, the guide plate cooperates with the fixing ribs to guide it. Once the walkie-talkie panel assembly is stopped by the fixing ribs, it can no longer move. The structure is reasonable and convenient for user operation.

[0009] Furthermore, the locking mechanism includes a locking rib group located at the inner end of the front panel and a latch located at the end of the walkie-talkie panel assembly that can move up and down. The locking rib group includes multiple horizontally extending locking ribs, the height of which gradually decreases from the end inwards. When the walkie-talkie panel assembly moves horizontally, the lower edge of the locking rib engages with the upper edge of the horizontal plate for guidance. During the movement, the latch is gradually moved upwards by the locking ribs until the force of the locking ribs disappears, and the latch moves downwards and is stopped by the locking ribs. At this point, the side edge of the locking rib is stopped by the vertical plate and the lower edge is stopped by the horizontal plate, preventing the walkie-talkie panel from moving in any direction. The structure is ingenious and reasonable, the operation is simple, the connection is firm, and it is convenient for users to operate.

[0010] Furthermore, the two side plates are provided with first screw holes. After the main unit is inserted between the two side plates and abuts against the front plate, the front shell of the main unit is fixed to the main unit by bolts that match the first screw holes, making the operation simple.

[0011] Furthermore, the relay component includes a base plate with two L-shaped iron plates spaced apart on it. Each L-shaped iron plate has a second screw hole. The main unit is located between the two L-shaped iron plates and is fixed to the base plate by bolts that match the second screw holes. The structure is reliable and the operation is simple.

[0012] Furthermore, the relay component also includes a heat dissipation box that can be detachably mounted on the base plate. One end of the base plate is equipped with a first fan that draws air inward, and the other end is equipped with a second fan that blows air outward. This not only increases the airflow but also allows for the rapid removal of internal heat, giving the relay component excellent heat dissipation capabilities.

[0013] Furthermore, the walkie-talkie panel assembly includes a dual eight-wire converter board connected to the first controller and a first eight-wire crystal connector connected to the dual eight-wire converter board; the main unit includes a second eight-wire crystal connector connected to the main controller; and the repeater assembly includes a third eight-wire crystal connector connected to the second controller. The operation is simple and reliable. Attached Figure Description

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a block diagram showing the connection of this utility model.

[0016] Figure 2 This is a structural diagram of the present invention when used as a walkie-talkie.

[0017] Figure 3 This is another structural diagram of the present invention when used as a walkie-talkie (with the back cover removed).

[0018] Figure 4 This is a block diagram illustrating the principle of this utility model when used as a walkie-talkie.

[0019] Figure 5 This is a schematic diagram of the structure of this utility model when it is used as a relay.

[0020] Figure 6 This is another structural diagram of the present invention when used as a relay (with the heat sink removed).

[0021] Figure 7 This is a top view of the structure of this utility model when it is used as a relay (with the heat sink removed).

[0022] Figure 8 This is a block diagram illustrating the principle of this utility model when used as a relay.

[0023] Figure 9 This is a schematic diagram of the front shell of the main unit of this utility model.

[0024] Figure 10 This is a schematic diagram of the structure of the walkie-talkie panel assembly of this utility model.

[0025] Figure 11 This is a schematic diagram showing the positions of the fixing ribs, horizontal plates, and vertical plates when the walkie-talkie panel assembly of this utility model is installed on the front shell of the main unit.

[0026] The components are as follows: 1. Main unit; 11. Main controller; 12. Second 8-wire crystal connector; 21. Main unit front cover; 211. Side panel; 212. Front panel; 213. First screw hole; 22. Main unit lower cover; 231. Fixing rib; 2311. Lower edge of fixing rib; 2312. Side edge of fixing rib; 232. Vertical plate; 233. Horizontal plate; 2331. Upper upper edge of horizontal plate; 234. Guide plate; 241. Locking rib; 2411. Outer edge of locking rib; 242. Buckle. 31. First controller; 32. Lower edge of walkie-talkie panel assembly; 33. Dual eight-wire converter board; 34. First eight-wire crystal connector; 41. Second controller; 42. Base plate; 43. L-shaped iron sheet; 45. Heat sink; 46. First fan; 47. Second fan; 48. Power module; 49. Control panel; 410. Power interface; 411. Power switch; 412. Front-end board; 413. Rear-end board; 414. Antenna interface; 415. Third eight-wire crystal connector. Detailed Implementation

[0027] The present invention will be further described below through specific embodiments.

[0028] like Figures 1 to 11As shown, the inter-frequency repeater vehicle-mounted walkie-talkie includes a main unit 1, a main unit housing, a walkie-talkie panel assembly, and a repeater assembly. The main unit housing includes a front cover 21 and a lower cover 22. The front cover 21 includes two side panels 211 arranged opposite each other and a front panel 212 disposed between the two side panels 211. The two side panels 211 are provided with first screw holes 213. When used as a walkie-talkie, the main unit 1 is inserted between the two side panels 211 and abuts against the front panel 212, and is then fixed to the front cover 21 by bolts matching the first screw holes 213. The walkie-talkie panel assembly is detachably mounted on the front cover 21 via a first connecting mechanism. The main unit 1 and the walkie-talkie panel assembly are located on the outer and inner sides of the front cover 21, respectively.

[0029] The repeater assembly includes a base plate 42, a front end plate 412 and a rear end plate 413 disposed at both ends of the base plate 42, a heat sink 45 detachably disposed on the base plate 42, a power module 48 disposed on the base plate 42, two first fans 46 disposed on the rear end plate 413 for inward air intake, a second fan 47 disposed on the front end plate 412 for outward air blowing, an antenna interface 414, a control panel 49 disposed on the front end plate 412, a power interface 410, and a power switch 411 disposed on the front end plate 412. Two L-shaped iron plates 43 are spaced apart on the base plate 42, and each L-shaped iron plate has a second screw hole. When used as a repeater, the main unit 1 is disposed between the two L-shaped iron plates 43 and fixed to the base plate 42 by bolts matching the second screw holes. The specific details and circuit connections of the antenna interface 414, control panel 49, power interface 410, and power switch 411 are existing technologies.

[0030] The first connection mechanism includes a guide fixing mechanism and a snap-fit ​​mechanism disposed between the front shell 21 of the main unit and the walkie-talkie panel assembly. During installation, the walkie-talkie panel assembly moves longitudinally relative to the front shell 21 of the main unit with the help of the guide fixing mechanism. After it can no longer move, the walkie-talkie panel assembly moves laterally until it can no longer move due to the action of the guide fixing mechanism. At this time, the walkie-talkie panel assembly is snapped and fixed on the front shell 21 of the main unit with the help of the snap-fit ​​mechanism.

[0031] In this embodiment, the guiding and fixing mechanism includes fixing ribs 231 respectively disposed on the inner sides of the two side plates 211, a vertical plate 232 disposed on the walkie-talkie panel assembly, a horizontal plate 233 disposed on the vertical plate 232, and a guide plate 234 disposed on the horizontal plate 233 and extending relative to the front shell 21 of the main unit. When the walkie-talkie panel assembly moves relative to the front shell 21 of the main unit, the guide plate 234 cooperates with the fixing ribs 231 to guide it. After the walkie-talkie panel assembly is blocked by the fixing ribs 231, it can no longer move. More specifically, during the movement, the guide plate 234 abuts against the outer side of the fixing ribs 231 to achieve a longitudinal guiding effect. When the upper ends of the two side plates 211 abut against the lower edge 32 of the walkie-talkie panel assembly, the walkie-talkie panel assembly can no longer move.

[0032] The locking mechanism includes a set of locking ribs 241 disposed on the inner end of the front panel 212 and a latch 242 disposed on the end of the walkie-talkie panel assembly and movable up and down. The set of locking ribs 241 includes five horizontally extending locking ribs 241. The height of the locking ribs 241 gradually decreases from the end inward. When the walkie-talkie panel assembly moves horizontally, the lower edge 2311 of the fixing ribs cooperates with the upper edge 2331 of the horizontal plate to provide horizontal guidance. During the movement, the latch 242 is pressed against by the locking ribs 241 and gradually moves upward. After moving to the end of the locking ribs 241, the force of the locking ribs 241 disappears, and the latch 242 moves downward and is pressed against by the outer edge 2411 of the locking ribs. At this time, the side edge 2312 of the fixing ribs is pressed against by the vertical plate 232 and the lower edge 2311 is pressed against by the horizontal plate 233, so that the walkie-talkie panel can no longer move in any direction. The specific structure of the buckle 242 and the specific structure that allows it to be moved up and down at the end of the walkie-talkie panel assembly are both existing technologies.

[0033] The main unit 1 includes a first branch for processing VHF signals, a second branch for processing UHF signals, a main controller 11 that controls the connection of the first and second branches to achieve inter-frequency repeater, an audio amplifier unit, a microphone, a UHF speaker, and a VHF speaker. The walkie-talkie panel assembly has a first controller 31, and the repeater assembly has a second controller 41. The operation panel assembly includes a dual eight-wire converter board 33 connected to the first controller 31 and a first eight-wire crystal connector 34 connected to the dual eight-wire converter board 33. The main unit 1 includes a second eight-wire crystal connector 12 connected to the main controller 11, and the repeater assembly includes a third eight-wire crystal connector 415 connected to the second controller 41. When used as a walkie-talkie, the second eight-wire crystal connector 12 is connected to the first eight-wire crystal connector 34 to connect the first controller 31 to the main controller 11. When used as a repeater, the second eight-wire crystal connector 12 is connected to the third eight-wire crystal connector 415 to connect the second controller 41 to the main controller 11. The first controller 31, the second controller 41, and the main controller 11 are all prior art. The connections between the crystal connectors are also prior art. The connection between each crystal connector and its corresponding controller is also existing technology. The first controller 31 is a microprocessor of model R5F212CCSDFP, the second controller 41 is a microprocessor of model N32L406CBL7, and the main controller 11 is a microprocessor of model HC32L196MCTA.

[0034] The first branch includes a VHF transceiver switch, a VHF receiving unit, a first audio processor, a VHF frequency synthesizer, and a VHF transmitting unit connected in sequence. The second branch includes a UHF transceiver switch, a UHF receiving unit, a second audio processor, a UHF frequency synthesizer, and a UHF transmitting unit connected in sequence. The main controller 11 is connected to the first and second audio processors respectively to control the output signal of the first audio processor to be input to the second audio processor, or to control the output signal of the second audio processor to be input to the first audio processor, so as to realize inter-frequency relay, or to control the output signals of the first and second audio processors to be input to the audio amplification unit, so as to realize dual-band reception of the vehicle-mounted walkie-talkie. The audio amplification unit is connected to the output terminals of the first and second audio processors respectively. The UHF speaker and the VHF speaker are connected to the output terminal of the audio amplification unit respectively. The microphone output terminal is connected to the first and second audio processors respectively. The whole device shares a single antenna port, and the UHF and VHF bands are received and transmitted through the same antenna.

[0035] When used as a repeater, the specific process of UHF to VHF conversion is as follows: S1: Set the repeater frequency. The setting process is based on existing technology, such as reserving a TYPE-C data port on the control panel 49 of the repeater component, connecting it to a PC, and writing the set repeater frequency to the repeater station through PC software. S2: As a relay, the received signal is processed by the UHF receiving unit through frequency selection, filtering, and demodulation. The resulting audio signal then enters the second audio processor for audio processing. S3: The main controller 11 opens the path between the first audio processor and the second audio processor. The received audio signal output by the second audio processor enters the first audio processor for transmission audio processing. After processing, it enters the VHF transmission unit. The VHF transmission unit modulates the signal into a signal at a preset frequency, amplifies it, and then transmits it from the antenna.

[0036] When used as a repeater, the specific process of VHF to UHF conversion is as follows: S1: Set the relay frequency; S2: As a relay, the received signal is processed by the VHF receiving unit through frequency selection, filtering, and demodulation. The resulting audio signal then enters the first audio processor for audio processing. S3: The main controller 11 opens the path between the first audio processor and the second audio processor. The received audio signal processed by the first audio processor enters the second audio processor for transmission audio processing. After processing, it enters the UHF transmission unit. The UHF transmission unit modulates the signal into a signal at a preset frequency, amplifies it, and then transmits it from the antenna.

[0037] When used as a walkie-talkie, the first branch is responsible for receiving VHF band signals, and the second branch is responsible for receiving UHF band signals. The two branches can receive independently, and the VHF speaker and UHF speaker can play the corresponding signals simultaneously.

[0038] In this utility model, the terms "first," "second," and "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. The use of terms such as "upper," "lower," "left," "right," "front," and "rear" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model, and does not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, it should not be construed as a limitation on the scope of protection of this utility model. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0040] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A vehicle-mounted walkie-talkie with a different frequency repeater, characterized in that: The device includes a main unit, a main unit housing, a walkie-talkie panel assembly, and a repeater assembly. The main unit is detachably mounted on the main unit housing or detachably mounted on the repeater assembly. The walkie-talkie panel assembly is detachably mounted on the main unit housing. The main unit includes a first branch for processing VHF signals, a second branch for processing UHF signals, and a main controller that controls the connection of the first and second branches to achieve inter-frequency repeating. The walkie-talkie panel assembly has a first controller, and the repeater assembly has a second controller. When used as a walkie-talkie, the main unit is mounted on the main unit housing, the walkie-talkie panel assembly is mounted on the main unit housing, and the first controller is connected to the main controller. When used as a repeater, the main unit is mounted on the repeater assembly, and the second controller is connected to the main controller.

2. The inter-frequency repeater vehicle-mounted walkie-talkie according to claim 1, characterized in that: The host also includes an audio amplification unit. The first branch includes a VHF transceiver switch, a VHF receiving unit, a first audio processor, a VHF frequency synthesis unit, and a VHF transmitting unit connected in sequence. The second branch includes a UHF transceiver switch, a UHF receiving unit, a second audio processor, a UHF frequency synthesis unit, and a UHF transmitting unit connected in sequence. The main controller is connected to the first and second audio processors respectively to control the output signal of the first audio processor to be input to the second audio processor, or to control the output signal of the second audio processor to be input to the first audio processor, so as to realize inter-frequency relay, or to control the output signals of the first and second audio processors to be input to the audio amplification unit, so as to realize dual-band reception of the vehicle-mounted walkie-talkie.

3. The inter-frequency repeater vehicle-mounted walkie-talkie according to claim 1, characterized in that: The host also includes a microphone, a UHF speaker and a VHF speaker. The UHF speaker and the VHF speaker are respectively connected to the output of the audio amplification unit, and the microphone output is respectively connected to the first and second audio processors.

4. A cross-frequency repeater vehicle-mounted walkie-talkie according to claim 1, 2, or 3, characterized in that: The main unit housing includes a front housing, and the front housing and the walkie-talkie panel assembly are detachably connected by a first connecting mechanism. The first connecting mechanism includes a guide fixing mechanism and a snap-fit ​​mechanism disposed between the front housing and the walkie-talkie panel assembly. The walkie-talkie panel assembly moves relative to the front housing with the help of the guide fixing mechanism. After it can no longer move, the walkie-talkie panel assembly moves laterally until it can no longer move due to the action of the guide fixing mechanism. At this time, the walkie-talkie panel assembly is snapped and fixed on the front housing with the help of the snap-fit ​​mechanism.

5. A vehicle-mounted intercom with a different frequency repeater according to claim 4, characterized in that: The main unit front shell includes two side plates arranged opposite each other and a front plate disposed between the two side plates. The guiding and fixing mechanism includes fixing ribs disposed on the inner side of the two side plates, a vertical plate disposed on the walkie-talkie panel assembly, a horizontal plate disposed on the vertical plate, and a guide plate disposed on the horizontal plate and extending relative to the main unit front shell. When the walkie-talkie panel assembly moves relative to the main unit front shell, the guide plate cooperates with the fixing ribs to guide it. After the walkie-talkie panel assembly is blocked by the fixing ribs, it can no longer move.

6. A cross-frequency repeater vehicle-mounted walkie-talkie according to claim 5, characterized in that: The locking mechanism includes a locking rib group located at the inner end of the front panel and a latch located at the end of the walkie-talkie panel assembly that can move up and down. The locking rib group includes multiple horizontally extending locking ribs, the height of which gradually decreases from the end inward. When the walkie-talkie panel assembly moves horizontally, the lower edge of the fixing rib engages with the upper edge of the horizontal plate for guidance. During the movement, the latch is gradually moved upward by being held against the locking rib until the force of the locking rib disappears. The latch then moves downward and is held against the locking rib. At this time, the side edge of the fixing rib is held against the vertical plate and the lower edge is held against the horizontal plate, so that the walkie-talkie panel can no longer move in any direction.

7. A vehicle-mounted intercom with a different frequency repeater according to claim 5, characterized in that: The two side plates are provided with first screw holes. After the main unit is inserted between the two side plates and abuts against the front plate, it is fixed to the front shell of the main unit by bolts that match the first screw holes.

8. A cross-frequency repeater vehicle-mounted walkie-talkie according to claim 1, 2, or 3, characterized in that: The relay component includes a base plate with two L-shaped iron plates spaced apart on it. Each L-shaped iron plate has a second screw hole. The main unit is located between the two L-shaped iron plates and is fixed to the base plate by bolts that match the second screw holes.

9. A vehicle-mounted intercom with a different frequency repeater according to claim 8, characterized in that: The relay component also includes a heat sink that can be detachably mounted on the base plate. One end of the base plate is provided with a first fan that draws air inward, and the other end is provided with a second fan that blows air outward.

10. A cross-frequency repeater vehicle-mounted walkie-talkie according to claim 1, 2, or 3, characterized in that: The walkie-talkie panel assembly includes a dual eight-wire converter board connected to the first controller and a first eight-wire crystal connector connected to the dual eight-wire converter board. The main unit includes a second eight-wire crystal connector connected to the main controller. The repeater assembly includes a third eight-wire crystal connector connected to the second controller.

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