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98results about How to "Open" patented technology

Access control for rental cars

Cars of a car rental system are made operable by having a renter present a digital key issued from the car rental system. The digital key specifies the starting date and time of a given rental transaction, and the identification of the car the key is for. The digital key is further signed by the car rental system for authenticity. A prospective renter makes online reservation over the Web and downloads into a portable storage device a digital key which can be used to operate the reserved car on the day the reservation is made for. On the pickup day, the renter goes to the car and inserts the portable storage device into a slot on the car. Upon successful verification of the digital key, the car is enabled and the renter can keep the car until he or she wants to return the car. The return process starts by having the renter obtain a invalidated digital key from the car. Once the rental car invalidates the digital key provided by the renter, the renter can no longer operate the rental car. Since the in-car controller is able to decipher the given authorization information, there is no need to re-program the in-car controller for each renter. The renter will be held liable for the rental car until he or she presents the invalidated digital key to the central station of the car rental system. To prevent a lost digital key from being used by unauthorized parties, a digital key can contain information such as a personal identification number (PIN) or a hash of the PIN of the authorized renter. For extra protection, the renter can opt to include his or her PIN in the digital key when the key is created by the car rental system. The parking lot of the car rental system can be operated without security personnel checking for proper authorization.
Owner:WAYMO LLC

Parking spot lock, parking spot management system and parking spot management method based on Internet or local area network

ActiveCN103731491AChange the management service modelOpenTransmissionParkingsMicrocontrollerRadio frequency signal
The invention relates to a parking spot lock, a parking spot management system and a parking spot management method based on the Internet or a local area network. The parking spot lock comprises a shell body, a motor arranged in the shell body and a moving mechanism connected with the motor, and further comprises a microcontroller with wifi communication, Bluetooth communication and/or radio frequency communication in the shell body and an antenna which is installed outside the shell body and used for receiving wifi signals, Bluetooth signals or/and radio frequency signals. The microcontroller receives control signals emitted by a parking spot lock controlling end from the Internet or the local area network through the antenna, and drives the motor to drive the moving mechanism to achieve unlocking or locking according to the received control signals. The parking spot management system and method have the work process that the controlling end of the parking spot lock sends the control signals to the parking spot lock through the network, and the parking spot lock achieves unlocking or locking according to the received control signals. The parking spot lock has the advantages of being capable of being controlled anytime and anywhere and capable of being shared, and the open, individualized and intelligent management on a parking spot is achieved.
Owner:北京慧行大道创新科技有限责任公司

Dual output magnetically coupled pushbutton switch

A magnetically coupled pushbutton switch may be improved by adding protuberances to the top of an armature to create a weak heel on the armature. The protuberances impose a physical barrier which prevents the weak heel from becoming fully magnetically coupled to the magnetic coupler layer, so the initial tactile feedback is lost. Eliminating the double tactile feedback of a magnetically coupled pushbutton switch has some significant advantages over the prior art. Now, a very light actuation force will move an armature with a weak heel from the rest position to a partially actuated position, but without sacrificing any of the final tactile feedback. The improved armature design also makes it possible to use a magnetically coupled pushbutton switch to produce a dual output. The initial travel of a dual output switch does not create any feedback to the user, so there is no longer a need to stabilize the bottom of the heel end of the armature. A dual output armature can electrical connect a common electrical conductor placed under the heel end of the armature to two separate electrical conductors positioned under the toe end of the armature such that there is no output until the armature is fully actuated, at which time all three electrical conductors are simultaneously electrically connected by the dual output armature.
Owner:MEMTRON TECH

Automobile hardware-in-loop simulation system

The invention discloses an automobile hardware-in-loop simulation system. The automobile hardware-in-loop simulation system is developed on the basis of two kinds of universal software platforms of N1 including LabVIEW and Veristand and divided into an upper computer and a lower computer on the whole, wherein the lower computer particularly comprises hardware of various types of hardware resources and driving program of the hardware and an important engine model which are required by tests to be used for simulating the working states of an engine; Vristand related lower computer software serves as a bridge between an interface of the engine model and the corresponding hardware resources to achieve mutual communication and connection between the two, and the Vristand related lower computer software serves as an interface in communication with the upper computer to transmit related information of the engine model and other hardware to the upper computer; the upper computer comprises a human-computer interface and a hardware resource output port, and the human-computer interface of the upper computer is compiled by the LabVIEW, the good openness, the universality and the portability are achieved, and the development of follow-up projects is facilitated.
Owner:UNITED AUTOMOTIVE ELECTRONICS SYST

Fan coil temperature controller adopting multiple energy saving models

The invention discloses a fan coil temperature controller adopting multiple energy saving models. The temperature controller comprises a control processing module, and a power module, a Lonworks intelligent receiving and dispatching module, a relay control module, an electricity quantity metering module, a temperature acquisition circuit, a keyboard circuit, a liquid crystal display circuit, a data storage and real-time clock circuit and an IO (Input / Output) expansion circuit which are respectively connected with the control processing module; the electricity quantity metering module comprises a voltage and current sampling circuit and an electricity acquisition circuit; the relay control module is divided into four relay output paths; one of the four paths is in normally-open / close double-contract output which can be used for controlling a two / three-wire valve; the other three paths are in normally-open contact output and are used for controlling the high / intermediate / low-level operation models of a fan. The temperature controller can be used for automatically implementing multiple flexible energy-saving control models such as temperature adjustment control according to consumption reduction indexes so as to realize the aims of reasonably utilizing energy and reducing the energy consumption.
Owner:江苏联宏智慧能源股份有限公司

Signal channel calibration method and device based on correlation with least squares

The invention discloses a signal channel calibration method and a signal channel calibration device based on correlation with least squares. The signal channel calibration method comprises the steps of: determining transmission delay of a to-be-calibrated channel relative to a pre-selected reference channel, and completing the signal delay calibration of the to-be-calibrated channel according to the obtained transmission delay; calculating an initial phase of each channel by adopting a least square method, and determining a phase difference between the to-be-calibrated channel and the reference channel; and completing calibration of the signal phase difference of the to-be-calibrated channel according to the obtained phase difference. The signal channel calibration method adopts the methodbased on correlation with least squares, designs a signal multi-channel amplitude-phase characteristic analysis calculation and calibration method which is based on signal acquisition data of the same signal in each channel, obtains signal amplitude delay information through calculation by adopting an envelope correlation method, obtains phase information of each channel signal through least square calculation, automatically completes amplitude-phase characteristic calibration work of each signal channel according to measurement information, and realizes consistency of amplitude-phase characteristics of each signal channel.
Owner:NANJING CHANGFENG AEROSPACE ELECTRONICS SCI & TECH

On-line examine and self-examine system supporting Android mobile terminals and examining method of on-line examine and self-examine system

The invention discloses an on-line examine and self-examine system supporting Android mobile terminals and an examining method of the on-line examine and self-examine system. The on-line examine and self-examine system comprises a Web examination server connected with a database server and an Android examination client which is connected to the Web examination server through network, wherein the Android examination client comprises a user registering and logging module, an examination participating module, a score inquiring module and a user center module; the Web examination server comprisesan administrator registering and logging module, a user management module, a test library management module, an examination management module and a score management module. According to the on-line examine and self-examine system disclosed by the invention, the Android examination client connected to the Web examination server through the network supports the mobile terminals; an examinee user canuse the on-line examine and self-examine system at any time and any place, so that the works of secure logging, test paper selecting, on-line self-examining, scone and wrong problem inquiring and communication and discussion participation can be completed by the examinee participating in on-line self-examine examination at the Android examination client.
Owner:SOUTHWEST UNIVERSITY
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