Short message equipment and vehicle

Abstract

The utility model relates to a short message device and a vehicle, and the short message device comprises a host and a first antenna. Wherein the first antenna is arranged in the host, the first antenna is connected with the host to transmit and receive signals, and the host can be detachably connected with the vehicle.

Description

Technical Field

[0001] The present disclosure relates to vehicle navigation technology, and more specifically, to a short message device and a vehicle. Background Art

[0002] Short message technology is a technology that transmits information through a satellite navigation system. It uses satellite networks to achieve short message transmission and can effectively solve emergency communication problems in areas without mobile public network coverage.

[0003] In harsh environments without mobile communication signals, short message communication functions are particularly important. Short message communication service coverage has the characteristics of low cost, wide coverage, high reliability and access at any time. It can effectively supplement the ground mobile communication network to meet the needs of emergency communication, search and rescue and other services in areas without ground network coverage. In recent years, short message communication services have played a positive role in people's livelihood protection, disaster relief and reduction, and field search and rescue.

[0004] Car-mounted short message equipment is generally combined with the vehicle's center console to provide vehicles with all-weather emergency communication, vehicle status reporting, location reporting and other services when ordinary mobile communication signals cannot cover them.

[0005] This short message device combined with the vehicle's central console will not be able to function normally when the vehicle breaks down or when the vehicle is in a bridge tunnel, at the foot of a mountain, or other places where the satellite signal is blocked. Utility Model Content

[0006] One purpose of the utility model is to provide a new technical solution for short message equipment.

[0007] According to a first aspect of the utility model, a short message device is provided, comprising: a host, a first antenna; wherein:

[0008] The first antenna is built into the host, and the first antenna transmits and receives signals by connecting with the host. The host can be detachably connected to the vehicle.

[0009] Optionally, the short message device includes a first radio frequency connector with a switching switch and a second antenna; wherein,

[0010] The first radio frequency connector is used to switch the connection between the first antenna and the second antenna and the host.

[0011] Optionally, when the host is removed from the vehicle, the switching switch of the first RF connector is used to switch the connection between the second antenna and the host to the connection between the first antenna and the host.

[0012] Optionally, the host includes a controller, a short message module, a positioning module, a battery and a physical button module; wherein,

[0013] The short message module, the positioning module, the battery and the physical button module are all connected to the controller.

[0014] The short message module can also switch to connect with the first antenna and the second antenna;

[0015] The battery is used to supply power to the host computer when the host computer is removed from the vehicle.

[0016] Optionally, the short message module includes a baseband chip and a first-level signal amplification circuit;

[0017] The first-level signal amplification circuit includes a signal amplification circuit on a signal transmission link and a signal amplification circuit on a signal reception link, and the signal amplification circuit on the signal transmission link and the signal amplification circuit on the signal reception link both include a first amplifier and a first filter; wherein,

[0018] For the signal transmission link and the signal reception link, the first end of the first amplifier can be switchably connected to the first antenna and the second antenna, the second end of the first amplifier is connected to the first end of the first filter, the second end of the first filter is connected to the first end of the baseband chip, and the second end of the baseband chip is connected to the controller;

[0019] The first amplifier of the signal amplification circuit on the signal transmission link is used to amplify the transmitted signal;

[0020] The first amplifier of the signal amplifying circuit on the signal receiving link is used to amplify the received signal.

[0021] Optionally, the second antenna includes an active antenna, a secondary signal amplification circuit and a second radio frequency connector;

[0022] The secondary signal amplification circuit includes a signal amplification circuit on a signal transmission link and a signal amplification circuit on a signal reception link, and the signal amplification circuit on the signal transmission link and the signal amplification circuit on the signal reception link both include a second amplifier and a second filter; wherein,

[0023] For the signal transmission link and the signal reception link, the active antenna is connected to the first end of the second amplifier, the second end of the second amplifier is connected to the first end of the second filter, the second end of the second filter is connected to the first end of the second RF connector, and when the host is not removed from the vehicle, the second end of the second RF connector is connected to the host;

[0024] The first amplifier of the signal amplification circuit on the signal transmission link is used to amplify the transmitted signal;

[0025] The first amplifier of the signal amplifying circuit on the signal receiving link is used to amplify the received signal.

[0026] Optionally, the host further includes a Bluetooth module; wherein,

[0027] The Bluetooth module is connected to the controller.

[0028] The Bluetooth module is used for establishing Bluetooth communication between the host and the terminal device through the Bluetooth module when the host is removed from the vehicle, so that the terminal device sends a short message to the host through the Bluetooth communication.

[0029] According to a second aspect of the utility model, a short message device is provided, which is installed in a vehicle, and includes a host, a first antenna and a second antenna; wherein the first antenna is built into the host, and the second antenna is external to the host, and the host is detachably connected to the vehicle to switch between the first antenna and the second antenna.

[0030] Optionally, the short message device includes a first radio frequency connector with a switching switch; wherein,

[0031] The first radio frequency connector is used to switch the connection between the first antenna and the second antenna and the host.

[0032] Optionally, when the host is removed from the vehicle, the switching switch of the first RF connector is used to switch the connection between the second antenna and the host to the connection between the first antenna and the host.

[0033] Optionally, the host includes a controller, a short message module, a positioning module, a battery and a physical button module; wherein,

[0034] The short message module, the positioning module, the battery and the physical button module are all connected to the controller.

[0035] The short message module can also switch to connect with the first antenna and the second antenna;

[0036] The battery is used to supply power to the host computer when the host computer is removed from the vehicle.

[0037] Optionally, the short message module includes a baseband chip and a first-level signal amplification circuit;

[0038] The first-level signal amplification circuit includes a signal amplification circuit on a signal transmission link and a signal amplification circuit on a signal reception link, and the signal amplification circuit on the signal transmission link and the signal amplification circuit on the signal reception link both include a first amplifier and a first filter;

[0039] For the signal transmission link and the signal reception link, the first end of the first amplifier can be switchably connected to the first antenna and the second antenna, the second end of the first amplifier is connected to the first end of the first filter, the second end of the first filter is connected to the first end of the baseband chip, and the second end of the baseband chip is connected to the controller;

[0040] The first amplifier of the signal amplification circuit on the signal transmission link is used to amplify the transmitted signal;

[0041] The first amplifier of the signal amplifying circuit on the signal receiving link is used to amplify the received signal.

[0042] Optionally, the second antenna includes an active antenna, a secondary signal amplification circuit and a second radio frequency connector;

[0043] The secondary signal amplification circuit includes a signal amplification circuit on a signal transmission link and a signal amplification circuit on a signal reception link, and the signal amplification circuit on the signal transmission link and the signal amplification circuit on the signal reception link both include a second amplifier and a second filter;

[0044] For the signal transmission link and the signal reception link, the active antenna is connected to the first end of the second amplifier, the second end of the second amplifier is connected to the first end of the second filter, the second end of the second filter is connected to the first end of the second RF connector, and when the host is not removed from the vehicle, the second end of the second RF connector is connected to the host;

[0045] The first amplifier of the signal amplification circuit on the signal transmission link is used to amplify the transmitted signal;

[0046] The first amplifier of the signal amplifying circuit on the signal receiving link is used to amplify the received signal.

[0047] Optionally, the host further includes a Bluetooth module; wherein,

[0048] The Bluetooth module is connected to the controller.

[0049] The Bluetooth module is used for establishing Bluetooth communication between the host and the terminal device through the Bluetooth module when the host is removed from the vehicle, so that the terminal device sends a short message to the host through the Bluetooth communication.

[0050] According to a third aspect of the present invention, a vehicle is provided, comprising the short message device as described in any one of the first aspect or the second aspect.

[0051] The short message device provided by the utility model can be disassembled from the vehicle when a vehicle malfunctions and the short message device cannot be used normally, or when the vehicle is in a position where the signal is blocked. As an independently usable short message device, the host can still transmit and receive signals through the disassembled host, thereby improving the user experience.

[0052] Features and advantages of the embodiments of the present specification will become apparent from the following detailed description of exemplary embodiments of the present specification with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the specification and, together with the description, serve to explain the principles of the embodiments of the specification.

[0054] Figure 1 It is a structural block diagram of a short message device according to an embodiment of the utility model.

[0055] Figure 2 It is a principle schematic diagram of the internal connection relationship of the Fakra connector when the host is not removed from the vehicle according to an embodiment of the utility model.

[0056] Figure 3 It is a structural schematic diagram of the internal connection relationship of the Fakra connector when the host is not removed from the vehicle according to an embodiment of the utility model.

[0057] Figure 4 It is a principle schematic diagram of the internal connection relationship of the Fakra connector when the host is removed from the vehicle according to an embodiment of the utility model.

[0058] Figure 5 It is a structural schematic diagram of the internal connection relationship of the Fakra connector when the host is removed from the vehicle according to an embodiment of the utility model.

[0059] Figure 6 This is another structural block diagram of a short message device according to an embodiment of the utility model.

[0060] Figure 7 This is another structural block diagram of a short message device according to an embodiment of the utility model.

[0061] Figure 8 This is another structural block diagram of a short message device according to an embodiment of the utility model.

[0062] Fig. 9 It is a principle block diagram of a vehicle according to an embodiment of the utility model. DETAILED DESCRIPTION

[0063] Various exemplary embodiments of the present specification will now be described in detail with reference to the accompanying drawings.

[0064] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the embodiments of the present specification and its application or uses.

[0065] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0066] In one embodiment of the present utility model, a short message device is provided. Figure 1 As shown, the short message device includes a host and a first antenna. The first antenna is built into the host, and the first antenna transmits and receives signals by connecting with the host, and the host can be detachably connected to the vehicle.

[0067] The host removed from the vehicle can be used as an independently usable short message device. In the case that the vehicle fails and the short message device cannot be used normally, or in the case that the vehicle is in a position where the signal is blocked, the host can be removed from the vehicle and used as an independently usable short message device to transmit and receive signals through the built-in first antenna.

[0068] The first antenna is a passive antenna. The second antenna is an active antenna. The second antenna can be installed on the spoiler, sunroof, front windshield, etc. of the vehicle to receive satellite signals.

[0069] The short message device provided in this embodiment can be removed from the vehicle as an independently usable short message device when a vehicle malfunctions and the short message device cannot be used normally, or when the vehicle is in a position where the signal is blocked. The host can still transmit and receive signals through the removed host, thereby improving the user experience.

[0070] In one embodiment of the utility model, the short message device includes a first radio frequency connector with a switch and a second antenna. The first radio frequency connector is used to switch the connection between the first antenna and the second antenna and the host. The first radio frequency connector can be built into the host.

[0071] When the host is not removed from the vehicle, the host is connected to the second antenna, and the host transmits and receives signals through the second antenna. When the host is removed from the vehicle, the host is connected to the first antenna, and the host transmits and receives signals through the first antenna.

[0072] When the host is not removed from the vehicle, the host is connected to the second antenna through the first RF connector. When the host is removed from the vehicle, the connection between the host and the second antenna is switched to the connection between the host and the first antenna through the first RF connector.

[0073] A first radio frequency connector is provided on both the signal transmitting link and the signal receiving link.

[0074] In one embodiment, the first RF connector is a Fakra connector (Fachkreis Automobile) with a mechanical automatic switching switch. When the host is normally connected to the vehicle, the second antenna is connected to the host, and the transmission and reception of signals are completed through the second antenna. When the host is removed from the vehicle, the connection between the host and the second antenna is switched to the connection between the host and the first antenna through the Fakra connector with a mechanical automatic switching switch, so that the host can be used as an independently usable short message device, and the transmission and reception of signals are completed through the first antenna.

[0075] Figure 2 It is a principle schematic diagram of the internal connection relationship of the Fakra connector when the host is not removed from the vehicle according to an embodiment of the utility model.

[0076] See also Figure 2 When the host is not removed from the vehicle, the male head of the Fakra connector pushes the moving terminal, so that the moving terminal and the static terminal are disconnected. At this time, one end of the moving terminal is connected to the short message module of the host, and the moving terminal is connected to the signal pin of the Fakra connector, that is, the other end of the moving terminal is connected to the second antenna, realizing the connection between the host and the second antenna, and the transmission and reception of signals are completed through the second antenna.

[0077] Figure 3 It is a structural schematic diagram of the internal connection relationship of the Fakra connector when the host is not removed from the vehicle according to an embodiment of the utility model.

[0078] See also Figure 3 The Fakra connector includes a moving end pad and a static end pad. The moving end pad is connected to the short message module of the host ( Figure 3 The static end pad is connected to the first antenna ( Figure 3 (not shown). Figure 3The dynamic end pad is also connected to the mechanical shrapnel. When the host is not removed from the vehicle, the dynamic end pad is connected to the signal pin of the Fakra connector through the mechanical shrapnel, so that the host is connected to the second antenna, and the signal is transmitted and received through the second antenna.

[0079] Figure 4 It is a principle schematic diagram of the internal connection relationship of the Fakra connector when the host is removed from the vehicle according to an embodiment of the utility model.

[0080] See also Figure 4 When the host is removed from the vehicle, the male head of the Fakra connector bounces back to its original position, so that the dynamic terminal and the static terminal are connected. At this time, one end of the dynamic terminal is connected to the short message module of the host, and the other end of the dynamic terminal is connected to one end of the static terminal, and the other end of the static terminal is connected to the first antenna, so that the connection between the host and the first antenna is realized, and the transmission and reception of signals are completed through the first antenna.

[0081] Figure 5 It is a structural schematic diagram of the internal connection relationship of the Fakra connector when the host is removed from the vehicle according to an embodiment of the utility model.

[0082] See also Figure 5 The Fakra connector includes a moving end pad and a static end pad. The moving end pad is connected to the short message module of the host ( Figure 5 The static end pad is connected to the first antenna ( Figure 5 (not shown). Figure 5 The moving end pad is also connected to the mechanical spring. When the host is removed from the vehicle, the moving end pad is connected to the static end pad through the mechanical spring, so that the host is connected to the first antenna, and the first antenna transmits and receives signals.

[0083] In one embodiment of the present invention, see Figure 6 The host includes a controller, a short message module, a positioning module, a battery and a physical button module. The short message module, the positioning module, the battery and the physical button module are all connected to the controller. The short message module can also switch to be connected to the first antenna and the second antenna. The battery is used to power the host when the host is removed from the vehicle.

[0084] See also Figure 7 The short message module includes a baseband chip and a first-level signal amplification circuit. The first-level signal amplification circuit includes a signal amplification circuit on a signal transmission link and a signal amplification circuit on a signal reception link. The signal amplification circuit on the signal transmission link and the signal amplification circuit on the signal reception link both include a first amplifier and a first filter.

[0085] For the signal transmission link, the first end of the first amplifier can be switched to connect to the first antenna and the second antenna, the second end of the first amplifier is connected to the first end of the first filter, the second end of the first filter is connected to the first end of the baseband chip, and the second end of the baseband chip is connected to the controller.

[0086] For the signal receiving link, the first end of the first amplifier can be switched to connect to the first antenna and the second antenna, the second end of the first amplifier is connected to the first end of the first filter, the second end of the first filter is connected to the first end of the baseband chip, and the second end of the baseband chip is connected to the controller.

[0087] The first amplifier of the signal amplifying circuit on the signal transmitting link is used to amplify the transmitted signal. The first amplifier of the signal amplifying circuit on the signal receiving link is used to amplify the received signal.

[0088] When the host is not removed from the vehicle, the first end of the first amplifier is connected to the second antenna. When the host is removed from the vehicle, the first end of the first amplifier is connected to the second antenna through the first RF connector and then connected to the first antenna.

[0089] See also Figure 7 , a first-stage signal amplification circuit is set on both the signal transmission link and the signal reception link. In the first-stage signal amplification circuit set on the signal transmission link, the first amplifier is a PA (Power Amplifier). In the first-stage signal amplification circuit set on the signal reception link, the first amplifier is an LNA (Low Noise Amplifier).

[0090] The positioning module is used to send the collected location information to the controller, so that the controller transmits a short message carrying the location information via the short message module through the first antenna or the second antenna.

[0091] The battery is used to power the host when the host is removed from the vehicle. When the host is not removed from the vehicle, the battery of the vehicle powers the host. In one example, the battery can be a nickel-metal hydride battery.

[0092] The host also includes a power IC. The power IC is responsible for battery charging management, voltage conversion, and vehicle power detection in the host. When the host is removed from the vehicle, the power IC can detect that the vehicle is powered off, and the controller controls the power IC to switch to the battery in the host to ensure that the device does not lose power.

[0093] See also Figure 7 , a power switch and a DC / DC circuit are also connected between the power IC and the controller.

[0094] The host is connected to the center console of the vehicle through the CAN network. When the host is not removed from the vehicle, the short message device is triggered to send a short message by triggering the center console. When the host is removed from the vehicle, the short message device is triggered to send a short message through the physical button module.

[0095] In one embodiment of the present invention, see Figure 7 The second antenna includes an active antenna, a secondary signal amplification circuit and a second radio frequency connector. The secondary signal amplification circuit includes a signal amplification circuit on a signal transmission link and a signal amplification circuit on a signal reception link. The signal amplification circuit on the signal transmission link and the signal amplification circuit on the signal reception link both include a second amplifier and a second filter.

[0096] For the signal transmission link, the active antenna is connected to the first end of the second amplifier, the second end of the second amplifier is connected to the first end of the second filter, the second end of the second filter is connected to the first end of the second RF connector, and when the host is not removed from the vehicle, the second end of the second RF connector is connected to the host.

[0097] For the signal receiving link, the active antenna is connected to the first end of the second amplifier, the second end of the second amplifier is connected to the first end of the second filter, the second end of the second filter is connected to the first end of the second RF connector, and when the host is not removed from the vehicle, the second end of the second RF connector is connected to the host.

[0098] The first amplifier of the signal amplifying circuit on the signal transmitting link is used to amplify the transmitted signal. The first amplifier of the signal amplifying circuit on the signal receiving link is used to amplify the received signal.

[0099] See also Figure 7 When the host is not removed from the vehicle, the second RF connector is connected to the first RF connector to achieve connection between the host and the second antenna, and transmit and receive signals through the second antenna. When the host is removed from the vehicle, the second RF connector is disconnected from the first RF connector.

[0100] See also Figure 7 , a secondary signal amplification circuit is set on both the signal transmission link and the signal reception link. In the secondary signal amplification circuit set on the signal transmission link, the first amplifier is a PA (Power Amplifier). In the secondary signal amplification circuit set on the signal reception link, the first amplifier is an LNA (Low Noise Amplifier).

[0101] See also Figure 7In the signal transmission link, a DC / DC circuit is provided, one end of the DC / DC circuit is connected to the PA amplifier, and the other end of the DC / DC circuit is connected to the second RF connector. In the signal reception link, an LDO (Low Dropout Regulator) is provided, one end of the LDO is connected to the LNA amplifier, and the other end of the LDO is connected to the second RF connector.

[0102] The second antenna end is provided with a signal amplification circuit, and the short message module at the host end is provided with a signal amplification circuit. When the short message device transmits and receives signals through the second antenna, the signal amplification circuit provided at the second antenna end and the signal amplification circuit provided at the short message module can achieve two-stage amplification, thereby improving the signal quality and compensating for the signal attenuation caused by the wiring harness, thereby reducing the restriction on the arrangement distance between the host and the second antenna.

[0103] In one embodiment of the present invention, see Figure 6 The host also includes a Bluetooth module. The Bluetooth module is connected to the controller. The Bluetooth module is used for establishing Bluetooth communication with the terminal device through the Bluetooth module when the host is removed from the vehicle, so that the terminal device sends a short message to the host through the Bluetooth communication.

[0104] When the host is not removed from the vehicle, the short message device can be controlled by triggering the center console interface. When the host is removed from the vehicle, a Bluetooth connection is established with the terminal device through the Bluetooth module, and the short message device can be controlled through the terminal device.

[0105] In one embodiment of the present utility model, a short message device is provided. Figure 8 As shown, the short message device is installed in a vehicle, including a host, a first antenna and a second antenna; wherein the first antenna is built into the host, and the second antenna is external to the host, and the host can switch between the first antenna and the second antenna.

[0106] When the host is removed from the vehicle, the host is connected to the first antenna. The host transmits and receives signals through the first antenna. The host removed from the vehicle can be used as an independently usable short message device. In the case where a vehicle malfunctions and the short message device cannot be used normally, or when the vehicle is in a position where the signal is blocked, the host can be removed from the vehicle, and the host can be used as an independently usable short message device to transmit and receive signals through the built-in first antenna.

[0107] When the host is not removed from the vehicle, the host is connected to the second antenna, and the host transmits and receives signals through the second antenna.

[0108] The first antenna is a passive antenna. The second antenna is an active antenna. The second antenna can be installed on the spoiler, sunroof, front windshield, etc. of the vehicle to receive satellite signals.

[0109] The short message device provided in this embodiment, when the host is not removed from the vehicle, the host transmits and receives signals through the second antenna, so that the host can be used in a vehicle-mounted state. When a vehicle malfunction causes the short message device to fail to be used normally, or when the vehicle is in a position where the signal is blocked, the host can be removed from the vehicle and, as an independently usable short message device, can still transmit and receive signals through the removed host, thereby improving the user experience.

[0110] In one embodiment of the present utility model, the short message device comprises a first radio frequency connector with a switch, the first radio frequency connector is used to switch the connection between the first antenna and the second antenna and the host, and the first radio frequency connector is built into the host.

[0111] When the host is not removed from the vehicle, the host is connected to the second antenna through the first RF connector. When the host is removed from the vehicle, the connection between the host and the second antenna is switched to the connection between the host and the first antenna through the first RF connector.

[0112] A first radio frequency connector is provided on both the signal transmitting link and the signal receiving link.

[0113] In one embodiment, the first RF connector is a Fakra connector (Fachkreis Automobile) with a mechanical automatic switching switch. When the host is normally connected to the vehicle, the second antenna is connected to the host, and the transmission and reception of signals are completed through the second antenna. When the host is removed from the vehicle, the connection between the host and the second antenna is switched to the connection between the host and the first antenna through the Fakra connector with a mechanical automatic switching switch, so that the host can be used as an independently usable short message device, and the transmission and reception of signals are completed through the first antenna.

[0114] The working principle of the Fakra connector with a mechanical automatic switching switch can be found in the above embodiments, and will not be described in detail here.

[0115] In one embodiment of the utility model, the host includes a controller, a short message module, a positioning module, a battery and a physical button module. The short message module, the positioning module, the battery and the physical button module are all connected to the controller. The short message module can also switch to connect with the first antenna and the second antenna. The battery is used to power the host when the host is removed from the vehicle. For specific connection relationships, see Figure 6 .

[0116] The short message module includes a baseband chip and a first-level signal amplification circuit. The first-level signal amplification circuit includes a signal amplification circuit on a signal transmission link and a signal amplification circuit on a signal reception link. The signal amplification circuit on the signal transmission link and the signal amplification circuit on the signal reception link both include a first amplifier and a first filter.

[0117] For the signal transmission link, the first end of the first amplifier can be switched to connect with the first antenna and the second antenna, the second end of the first amplifier is connected to the first end of the first filter, the second end of the first filter is connected to the first end of the baseband chip, and the second end of the baseband chip is connected to the controller. For the signal reception link, the first end of the first amplifier can be switched to connect with the first antenna and the second antenna, the second end of the first amplifier is connected to the first end of the first filter, the second end of the first filter is connected to the first end of the baseband chip, and the second end of the baseband chip is connected to the controller. For specific connection relationships, see Figure 7 .

[0118] The first amplifier of the signal amplifying circuit on the signal transmitting link is used to amplify the transmitted signal. The first amplifier of the signal amplifying circuit on the signal receiving link is used to amplify the received signal.

[0119] When the host is not removed from the vehicle, the first end of the first amplifier is connected to the second antenna. When the host is removed from the vehicle, the first end of the first amplifier is connected to the second antenna through the first RF connector and then connected to the first antenna.

[0120] A first-stage signal amplification circuit is provided on both the signal transmission link and the signal reception link. In the first-stage signal amplification circuit provided on the signal transmission link, the first amplifier is a PA (Power Amplifier). In the first-stage signal amplification circuit provided on the signal reception link, the first amplifier is an LNA (Low Noise Amplifier).

[0121] The positioning module is used to send the collected location information to the controller, so that the controller transmits a short message carrying the location information via the short message module through the first antenna or the second antenna.

[0122] The battery is used to power the host when the host is removed from the vehicle. When the host is not removed from the vehicle, the battery of the vehicle powers the host. In one example, the battery can be a nickel-metal hydride battery.

[0123] The host also includes a power IC. The power IC is responsible for battery charging management, voltage conversion, and vehicle power detection in the host. When the host is removed from the vehicle, the power IC can detect that the vehicle is powered off, and the controller controls the power IC to switch to the battery in the host to ensure that the device does not lose power.

[0124] A power switch and a DC / DC circuit are also connected between the power IC and the controller. Figure 7 .

[0125] The host is connected to the center console of the vehicle through the CAN network. When the host is not removed from the vehicle, the short message device is triggered to send a short message by triggering the center console. When the host is removed from the vehicle, the short message device is triggered to send a short message through the physical button module.

[0126] In one embodiment of the utility model, the second antenna includes an active antenna, a secondary signal amplification circuit and a second radio frequency connector. The secondary signal amplification circuit includes a signal amplification circuit on a signal transmission link and a signal amplification circuit on a signal reception link. The signal amplification circuit on the signal transmission link and the signal amplification circuit on the signal reception link both include a second amplifier and a second filter.

[0127] For the signal transmission link, the active antenna is connected to the first end of the second amplifier, the second end of the second amplifier is connected to the first end of the second filter, the second end of the second filter is connected to the first end of the second RF connector, and when the host is not removed from the vehicle, the second end of the second RF connector is connected to the host. For the signal reception link, the active antenna is connected to the first end of the second amplifier, the second end of the second amplifier is connected to the first end of the second filter, the second end of the second filter is connected to the first end of the second RF connector, and when the host is not removed from the vehicle, the second end of the second RF connector is connected to the host. For specific connection relationships, see Figure 7 .

[0128] The first amplifier of the signal amplifying circuit on the signal transmitting link is used to amplify the transmitted signal. The first amplifier of the signal amplifying circuit on the signal receiving link is used to amplify the received signal.

[0129] When the host is not removed from the vehicle, the second RF connector is connected to the first RF connector to achieve the connection between the host and the second antenna, and transmit and receive signals through the second antenna. When the host is removed from the vehicle, the second RF connector is disconnected from the first RF connector. For details, see Figure 7 .

[0130] A secondary signal amplification circuit is provided on both the signal transmission link and the signal reception link. In the secondary signal amplification circuit provided on the signal transmission link, the first amplifier is a PA (Power Amplifier). In the secondary signal amplification circuit provided on the signal reception link, the first amplifier is an LNA (Low Noise Amplifier).

[0131] A DC / DC circuit is provided on the signal transmission link, one end of the DC / DC circuit is connected to the PA amplifier, and the other end of the DC / DC circuit is connected to the second RF connector. An LDO (Low Dropout Regulator) is provided on the signal reception link, one end of the LDO is connected to the LNA amplifier, and the other end of the LDO is connected to the second RF connector.

[0132] The second antenna end is provided with a signal amplification circuit, and the short message module at the host end is provided with a signal amplification circuit. When the short message device transmits and receives signals through the second antenna, the signal amplification circuit provided at the second antenna end and the signal amplification circuit provided at the short message module can achieve two-stage amplification, thereby improving the signal quality and compensating for the signal attenuation caused by the wiring harness, thereby reducing the restriction on the arrangement distance between the host and the second antenna.

[0133] In one embodiment of the present invention, the host further comprises a Bluetooth module. The Bluetooth module is connected to the controller. Figure 6 The Bluetooth module is used when the host is removed from the vehicle. The host establishes Bluetooth communication with the terminal device through the Bluetooth module, so that the terminal device sends short messages to the host through Bluetooth communication.

[0134] When the host is not removed from the vehicle, the short message device can be controlled by triggering the center console interface. When the host is removed from the vehicle, a Bluetooth connection is established with the terminal device through the Bluetooth module, and the short message device can be controlled through the terminal device.

[0135] In one embodiment of the present invention, a vehicle is provided. Fig. 9 As shown, the vehicle includes a short message device as provided in any of the above embodiments.

[0136] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. For the electric vehicle embodiment, its related parts can be referred to the partial description of the method embodiment.

[0137] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0138] The flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the systems, methods and computer program products according to the multiple embodiments of this specification. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a computer instruction, and a part of a module, a program segment or a computer instruction contains one or more executable computer instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or the flowchart, and the combination of the boxes in the block diagram and / or the flowchart can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that it is equivalent to implement it by hardware, implement it by software, and implement it by combining software and hardware.

[0139] The embodiments of the present specification have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A short message device, characterized in that: It includes a host and a first antenna; wherein, The first antenna is built into the host, and the first antenna transmits and receives signals by connecting with the host, and the host can be detachably connected to the vehicle; the short message device includes a first RF connector with a switching switch and a second antenna; wherein, The first RF connector is used to switch the connection between the first antenna and the second antenna and the host; When the host is removed from the vehicle, the switch of the first RF connector is used to switch the connection between the second antenna and the host to the connection between the first antenna and the host.

2. The short message device according to claim 1, characterized in that: The host includes a controller, a short message module, a positioning module, a battery and a physical button module; wherein, The short message module, the positioning module, the battery and the physical button module are all connected to the controller. The short message module can also switch to connect with the first antenna and the second antenna; The battery is used to supply power to the host computer when the host computer is removed from the vehicle.

3. The short message device according to claim 2, characterized in that: The short message module includes a baseband chip and a first-level signal amplification circuit; The first-level signal amplification circuit includes a signal amplification circuit on a signal transmission link and a signal amplification circuit on a signal reception link, and the signal amplification circuit on the signal transmission link and the signal amplification circuit on the signal reception link both include a first amplifier and a first filter; wherein, For the signal transmission link and the signal reception link, the first end of the first amplifier can be switchably connected to the first antenna and the second antenna, the second end of the first amplifier is connected to the first end of the first filter, the second end of the first filter is connected to the first end of the baseband chip, and the second end of the baseband chip is connected to the controller; The first amplifier of the signal amplification circuit on the signal transmission link is used to amplify the transmitted signal; The first amplifier of the signal amplifying circuit on the signal receiving link is used to amplify the received signal.

4. The short message device according to claim 1, characterized in that: The second antenna includes an active antenna, a secondary signal amplification circuit and a second radio frequency connector; The secondary signal amplification circuit includes a signal amplification circuit on a signal transmission link and a signal amplification circuit on a signal reception link, and the signal amplification circuit on the signal transmission link and the signal amplification circuit on the signal reception link both include a second amplifier and a second filter; wherein, For the signal transmission link and the signal reception link, the active antenna is connected to the first end of the second amplifier, the second end of the second amplifier is connected to the first end of the second filter, the second end of the second filter is connected to the first end of the second RF connector, and when the host is not removed from the vehicle, the second end of the second RF connector is connected to the host; The first amplifier of the signal amplification circuit on the signal transmission link is used to amplify the transmitted signal; The first amplifier of the signal amplifying circuit on the signal receiving link is used to amplify the received signal.

5. The short message device according to claim 2, characterized in that: The host also includes a Bluetooth module; wherein, The Bluetooth module is connected to the controller. The Bluetooth module is used for establishing Bluetooth communication between the host and the terminal device through the Bluetooth module when the host is removed from the vehicle, so that the terminal device sends a short message to the host through the Bluetooth communication.

6. A short message device, installed in a vehicle, characterized in that: It includes a host, a first antenna and a second antenna; wherein the first antenna is built into the host, the second antenna is external to the host, and the host is detachably connected to the vehicle to switch between the first antenna and the second antenna.

7. The short message device according to claim 6, characterized in that: The short message device comprises a first radio frequency connector with a switching switch; wherein, The first radio frequency connector is used to switch the connection between the first antenna and the second antenna and the host.

8. The short message device according to claim 7, characterized in that: When the host is removed from the vehicle, the switch of the first RF connector is used to switch the connection between the second antenna and the host to the connection between the first antenna and the host.

9. The short message device according to claim 6, characterized in that: The host includes a controller, a short message module, a positioning module, a battery and a physical button module; wherein, The short message module, the positioning module, the battery and the physical button module are all connected to the controller. The short message module can also switch to connect with the first antenna and the second antenna; The battery is used to supply power to the host computer when the host computer is removed from the vehicle.

10. The short message device according to claim 9, characterized in that: The short message module includes a baseband chip and a first-level signal amplification circuit; The first-level signal amplification circuit includes a signal amplification circuit on a signal transmission link and a signal amplification circuit on a signal reception link, and the signal amplification circuit on the signal transmission link and the signal amplification circuit on the signal reception link both include a first amplifier and a first filter; For the signal transmission link and the signal reception link, the first end of the first amplifier can be switchably connected to the first antenna and the second antenna, the second end of the first amplifier is connected to the first end of the first filter, the second end of the first filter is connected to the first end of the baseband chip, and the second end of the baseband chip is connected to the controller; The first amplifier of the signal amplification circuit on the signal transmission link is used to amplify the transmitted signal; The first amplifier of the signal amplifying circuit on the signal receiving link is used to amplify the received signal.

11. The short message device according to claim 6, characterized in that: The second antenna includes an active antenna, a secondary signal amplification circuit and a second radio frequency connector; The secondary signal amplification circuit includes a signal amplification circuit on a signal transmission link and a signal amplification circuit on a signal reception link, and the signal amplification circuit on the signal transmission link and the signal amplification circuit on the signal reception link both include a second amplifier and a second filter; For the signal transmission link and the signal reception link, the active antenna is connected to the first end of the second amplifier, the second end of the second amplifier is connected to the first end of the second filter, the second end of the second filter is connected to the first end of the second RF connector, and when the host is not removed from the vehicle, the second end of the second RF connector is connected to the host; The first amplifier of the signal amplification circuit on the signal transmission link is used to amplify the transmitted signal; The first amplifier of the signal amplifying circuit on the signal receiving link is used to amplify the received signal.

12. The short message device according to claim 9, characterized in that: The host also includes a Bluetooth module; wherein, The Bluetooth module is connected to the controller; The Bluetooth module is used for establishing Bluetooth communication between the host and the terminal device through the Bluetooth module when the host is removed from the vehicle, so that the terminal device sends a short message to the host through the Bluetooth communication.

13. A vehicle, characterized in that: Comprising the short message device as described in any one of claims 1-12.

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