An E-Call system vehicle cellular communication antenna with signal enhancement design
By introducing primary and secondary antenna switching and signal enhancement design into the E-Call system, the problems of cellular communication antenna signal interruption and delay were solved, enabling timely issuance of emergency calls and integrity of information transmission, thus improving rescue efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUNNYWAY TECH (SHENZHEN) CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional cellular communication antennas are prone to signal interruptions and delays in E-Call systems, resulting in emergency calls not being sent in a timely manner or incomplete information transmission, which affects rescue efficiency.
An E-Call system vehicle-mounted cellular communication antenna with signal enhancement was designed, comprising a main antenna, a sensing resistor, a secondary antenna, a controller, a low-noise amplifier, a filter, a tunable element, and a protection mechanism. By monitoring signal strength and environmental changes in real time, the main and secondary antennas are dynamically switched to enhance signal reception and transmission capabilities, and the signal quality and stability are improved through amplifiers and filters.
Ensuring timely emergency calls and complete information transmission improves rescue efficiency, reduces signal interruptions and delays, and enhances the antenna's reception capability and communication reliability in weak signal environments.
Smart Images

Figure CN224400665U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle-mounted communication antennas, and in particular to a vehicle-mounted cellular communication antenna for an E-Call system with signal enhancement design. Background Technology
[0002] The E-Call system, as a vehicle emergency call system, plays a vital role in road safety. When a vehicle is involved in a serious accident, the system can automatically or manually trigger an emergency call, quickly sending the vehicle's location and accident information to the rescue center, greatly shortening the rescue response time and effectively improving the safety of drivers and passengers.
[0003] When traditional cellular communication antennas are used in E-Call systems, signal interruptions and delays are common in remote mountainous areas, underground parking lots, or densely populated high-rise areas. This can result in emergency calls not being sent in a timely manner or incomplete information transmission, which seriously affects rescue efficiency. Utility Model Content
[0004] To overcome the shortcomings of traditional cellular communication antennas, such as signal interruption and delay, this utility model provides an E-Call system vehicle-mounted cellular communication antenna with signal enhancement design.
[0005] The technical solution of this utility model is: an E-Call system vehicle cellular communication antenna with signal enhancement design, including an antenna frame, a main antenna, a detection resistor, a secondary antenna, a controller, and a protection mechanism. The main antenna is installed in the middle of the antenna frame, and the detection resistor and the secondary antenna are installed at both ends of the antenna frame. A controller is provided at one end of the antenna frame, and a protection mechanism is provided in the middle of the antenna frame. The main antenna, the detection resistor, the secondary antenna, and the protection mechanism are all electrically connected to the controller.
[0006] Preferably, a low-noise amplifier is also included, with the low-noise amplifier located in the middle of the antenna frame.
[0007] Preferably, a filter is also included, with a filter provided at one end of the antenna mount.
[0008] Preferably, the antenna also includes a tunable element, with a tunable element provided at one end of the antenna mount.
[0009] Preferably, a temperature sensor is also included, with a temperature sensor located at the top center of the antenna frame, and the temperature sensor is electrically connected to the controller.
[0010] Preferably, the protection mechanism integrates electrostatic protection devices.
[0011] Preferably, the protection mechanism integrates a transient voltage suppression diode.
[0012] Preferably, the antenna frame uses steel sheets as its main structure.
[0013] The present invention has the following advantages: 1. The present invention uses the main antenna to be responsible for signal transmission and reception, and the detection resistor monitors parameters such as signal strength in real time and feeds them back to the controller. When the signal is weak or interfered with, the controller activates the secondary antenna to participate in the work, enhances the signal reception and transmission capabilities, reduces signal interruption and delay, ensures that emergency calls are sent in a timely manner and information is transmitted completely, and improves rescue efficiency.
[0014] 2. This utility model amplifies weak signals through a low-noise amplifier, improving signal strength and quality, enhancing the antenna's receiving capability in weak signal environments, filtering out noise and interference signals in the signal, retaining effective signals, reducing interference between signals in different frequency bands, improving signal transmission accuracy and stability, and the tunable element can adjust the antenna frequency characteristics according to different communication environments and frequency band requirements, enabling the antenna to adapt to different working conditions, maintain optimal working state, and improve signal transmission and reception efficiency and reliability. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Figure 2 This is a three-dimensional structural diagram of the low-noise amplifier, filter, and tunable element of this utility model.
[0017] Figure 3 This is a three-dimensional structural diagram of the main antenna, detection resistor, and sub-antenna of this utility model.
[0018] In the above attached diagram: 1: Antenna mount, 2: Main antenna, 3: Detection resistor, 4: Sub-antenna, 5: Controller, 6: Protection mechanism, 7: Low noise amplifier, 8: Filter, 9: Tunable element, 10: Temperature sensor. Detailed Implementation
[0019] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.
[0020] An E-Call system vehicle-mounted cellular communication antenna with signal enhancement design, such as Figures 1-3As shown, the antenna includes an antenna frame 1, a main antenna 2, a detection resistor 3, a secondary antenna 4, a controller 5, and a protection mechanism 6. The main antenna 2 is installed in the middle of the antenna frame 1. The main antenna 2 is responsible for receiving and transmitting signals. The detection resistor 3 and the secondary antenna 4 are installed at both ends of the antenna frame 1. The detection resistor 3 can monitor the signal strength of the main antenna 2 and whether there is an open or short circuit. The controller 5 is located at one end of the antenna frame 1, and the protection mechanism 6 is located in the middle of the antenna frame 1. The main antenna 2, the detection resistor 3, the secondary antenna 4, and the protection mechanism 6 are all electrically connected to the controller 5.
[0021] During operation, in areas with weak signal coverage or in complex electromagnetic environments during vehicle movement, when the main antenna 2 receives a signal, the detection resistor 3 will monitor the signal strength and other relevant parameters in real time and feed the information back to the controller 5. If the signal is weak or interfered with, the controller 5 will activate the secondary antenna 4 to participate in signal reception and transmission, thereby enhancing signal reception and transmission capabilities and reducing signal interruptions and delays. If the detection resistor 3 detects that the main antenna 2 has malfunctioned and cannot work normally, the secondary antenna 4 will respond quickly and temporarily replace the main antenna 2 to take over the responsibility of signal reception and transmission, maintain basic communication functions, ensure uninterrupted communication in emergencies, ensure that emergency calls can be sent in a timely manner and that information is transmitted completely, thereby improving rescue efficiency.
[0022] like Figures 1-2 As shown, it also includes a low-noise amplifier 7, which is located in the middle of the antenna frame 1. The low-noise amplifier 7 can amplify the received weak signal, improve the signal strength and quality, and make the signal easier for subsequent circuits to process, thereby enhancing the antenna's receiving capability in weak signal environments.
[0023] like Figure 2 As shown, it also includes a filter 8, which is installed at one end of the antenna mount 1. The filter 8 filters out noise and interference signals in the signal, retains the effective signal, reduces the impact of signal interference between different frequency bands on communication quality, ensures that the signals of each frequency band are clear and do not interfere with each other, and improves the accuracy and stability of signal transmission.
[0024] like Figure 2 As shown, it also includes a tunable element 9, which is provided at one end of the antenna frame 1. The tunable element integrates adjustable capacitors, inductors, or switches, etc., and can adjust the frequency characteristics of the antenna according to different communication environments and frequency band requirements, so that the antenna can adapt to different working conditions, always maintain the best working state, and improve the efficiency and reliability of signal reception and transmission.
[0025] like Figure 2As shown, it also includes a temperature sensor 10. The temperature sensor 10 is located at the top middle section of the antenna frame 1 and is electrically connected to the controller 5. The temperature sensor 10 monitors the temperature at the top middle section of the antenna frame 1 in real time and provides temperature data to the controller 5 so that the controller 5 can optimize and adjust the antenna's operating status according to temperature changes, avoiding the impact of excessively high or low temperatures on the antenna's performance and lifespan.
[0026] The protection mechanism 6 integrates an electrostatic discharge (ESD) protection device. When encountering static electricity, the ESD protection device can quickly dissipate the static energy, preventing damage to the antenna and other electronic components and ensuring the normal operation of the antenna.
[0027] The protection mechanism 6 integrates a transient voltage suppression diode. When a transient high voltage occurs, the transient voltage suppression diode can respond quickly, absorbing or dissipating the energy of the transient high voltage, protecting the antenna and related circuits from the impact of the transient high voltage, and improving the reliability and stability of the system.
[0028] Antenna frame 1 uses steel sheets as its main structure. Steel sheets have high strength and stability, providing robust support for the antenna and ensuring its stability and reliability during vehicle operation. Furthermore, the manufacturing process of steel sheets is simple, making them easy to mass-produce and reducing production costs.
[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A vehicle-mounted cellular communication antenna for an E-Call system with signal enhancement design, characterized in that: It includes an antenna frame (1), a main antenna (2), a detection resistor (3), a secondary antenna (4), a controller (5), and a protection mechanism (6). The main antenna (2) is installed in the middle of the antenna frame (1). The detection resistor (3) and the secondary antenna (4) are installed at both ends of the antenna frame (1). The controller (5) is located at one end of the antenna frame (1). The protection mechanism (6) is located in the middle of the antenna frame (1). The main antenna (2), the detection resistor (3), the secondary antenna (4), and the protection mechanism (6) are all electrically connected to the controller (5).
2. The vehicle-mounted cellular communication antenna for an E-Call system with signal enhancement design according to claim 1, characterized in that: It also includes a low-noise amplifier (7), which is located in the middle of the antenna frame (1).
3. The vehicle-mounted cellular communication antenna for an E-Call system with signal enhancement design according to claim 2, characterized in that: It also includes a filter (8), and the antenna frame (1) has a filter (8) at one end.
4. An E-Call system vehicle-mounted cellular communication antenna with signal enhancement design according to claim 3, characterized in that: It also includes a tunable element (9), and the antenna frame (1) has a tunable element (9) at one end.
5. An E-Call system vehicle-mounted cellular communication antenna with signal enhancement design according to claim 4, characterized in that: It also includes a temperature sensor (10), which is located at the top of the middle part of the antenna frame (1) and is electrically connected to the controller (5).
6. An E-Call system vehicle-mounted cellular communication antenna with signal enhancement design according to claim 5, characterized in that: The protection mechanism (6) integrates electrostatic protection devices.
7. An E-Call system vehicle-mounted cellular communication antenna with signal enhancement design according to claim 6, characterized in that: The protection mechanism (6) integrates a transient voltage suppression diode.
8. An E-Call system vehicle-mounted cellular communication antenna with signal enhancement design according to claim 7, characterized in that: The antenna frame (1) uses steel sheets as its main structure.