Keyless entry system

一种进入装置、便携机的技术，应用在运输和包装、独个输入口/输出口登记器、电动对号锁等方向，能够解决不能重叠、不能判断便携机位置、很难平衡等问题，达到可靠位置判断的效果
CN101290688AInactive Publication Date: 2008-10-22ALPS ALPINE CO LTD
2 Cites 19 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ALPS ALPINE CO LTD
Publication Date
2008-10-22
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides an access device without a key, capable of reliably judging internal and external of a vehicle even a portable machine is adjacent to a signal wire, comprising: a vehicle side device (2) and a portable machine (3). The vehicle side device (2) is mounted on the vehicle (1) and has a vehicle side sending part connected with several emission antennas (15) sending request signals via the signal wire (17) and a vehicle side receiving part receiving response signals. While the portable machine (3) has a portable receiving part which receives request signals and a portable sending part which sends response signals. The portable machine (3) is provided with a portable control part for detecting each intensity of signals sent by several emission antennas (15) of the vehicle side device (2). The vehicle side control part or the portable control part judges that the portable machine (3) is located at inner side of the vehicle when the summation of every distance calculated by two data in the intensity data from several emission antennas detected by the portable control part.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to a keyless entry device for locking and unlocking a vehicle door through wireless communication between a vehicle side device and a portable computer, and more particularly to a keyless entry device capable of accurately judging whether a portable computer is inside or outside a vehicle. key into the device. Background technique

[0002] A conventional keyless entry device locks and unlocks a vehicle door through wireless communication between a vehicle-side device installed in a vehicle and a portable device carried by a user. In recent years, passive keyless entry devices have also appeared. When the portable device approaches the vehicle, the device on the vehicle side and the portable device automatically communicate with each other. As long as the ID uniquely set on each portable device is authenticated, the It can lock and unlock the door. Patent Document 1 can be cited as the above-mentioned keyless entry device...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More