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2937results about How to "Reduce collision" patented technology

Locking device and electric automobile

The invention provides a locking device and an electric automobile. The locking device comprises lock bases, a lock connecting rod and lock shafts, wherein each lock base is used for providing a point to be locked and comprises a lock body; a lock groove which is concave toward the inner part of the corresponding lock body is arranged on one face of the corresponding lock body; each lock body is internally provided with a lock tongue groove and a lock tongue which is movably mounted in the lock tongue groove; the lock tongue grooves are communicated with the lock grooves; the lock connecting rod is movably connected with the lock bases through the lock tongues and comprises a rod part; the rod part drives the lock tongues to move in the lock tongue grooves under the action of an external force; each lock shaft comprises a shaft seat and a shaft rod; and the shaft rods are vertically arranged on the surfaces of the shaft seats, and the shaft rods are inserted into the lock grooves of the lock bases and are used for locking. According to the locking device and the electric automobile, the plurality of lock shafts, which are distributed at a side edge of a battery, are utilized and are inserted into the plurality of lock bases located on the electric automobile, so that the battery is fixed on the electric automobile; and the plurality of lock shafts can be automatically locked by the lock bases at the same time through utilizing the movement of the lock connecting rod, so that the installation efficiency and detachment efficiency of the battery are greatly improved.
Owner:SHANGHAI DIANBA NEW ENERGY RESOURCES SCI & TECH

Cooperative anti-collision device based on vehicle-vehicle communication and anti-collision method

The invention provides a cooperative anti-collision device based on vehicle-vehicle communication, belonging to the technical field of intelligent transportation/automobile safety control. The device comprises a vehicle operation information acquisition unit, a vehicle-vehicle communication unit, an information processing control unit, a data storage unit, an alarm unit and an execution unit. The vehicle operation information acquisition unit comprises a wheel speed sensor and a ranging module. Through the invention, the safety guarantee in vehicle running is enhanced; however, each vehicle executing cooperative collision prevention needs to be additionally provided with a cooperative anti-collision device, and a single vehicle only can implement the functions of a common anti-collision device; the vehicle-vehicle communication unit can acquire the information of space, speed and the like of the vehicles around in real time and perform real-time information interaction with the vehicles around; when the space is less than the safe space, the information processing control unit of the rear vehicle calculates the expected deceleration to avoid collision by reducing speed; and if the collision can not be prevented only by the rear vehicle, acceleration allocation information is sent to the front vehicle to notify the front vehicle to accelerate for cooperative collision prevention.
Owner:BEIHANG UNIV

Regional path tracking control method for autonomous land vehicle

The invention discloses a regional path tracking control method for an autonomous land vehicle. A problem that collision of a vehicle with a road boundary or surround obstacle occurs because shapes and sizes of the vehicle and the road are not considered by the existing tracking control method can be solved. The method comprises the following steps: establishing a two-dimensional road model; establishing a mathematical model associated with a vehicle path tracking problem; calculating a roadable region boundary line within a certain distance in front of the vehicle; establishing a vehicle system model; carrying out a design of a regional path tracking control model and selecting a controlled quantity being an optimum front wheel steering angle at current time; according to the optimum front wheel steering angle, controlling a steering execution mechanism to make motion to enable the controlled vehicle to be driven in a roadable region, provided by a vehicle sensing system, within a certain distance in front of the vehicle. When the two-dimensional road model is established, the shapes and sizes of the vehicle and roads are taken into consideration, thereby reducing the possibility of collision of the vechile with the road boundary and thus improving safety of the autonomous land vehicle.
Owner:JILIN UNIV

Method and system for generating color code as well as method and system for analyzing color code

The invention discloses a method and system for generating a color code as well as a method and system for analyzing the color code. The color code comprises an effective graph separating region, a data unit region, an image region, a locating unit and an effective graph outline border; the color code comprises N colors; and the system comprises a mapping table setting module, a coding module, a coding information acquiring module, an image filling module, an image forming module, a color filling module and an outline border separating region loader module. In the invention, easily identifiable color codes can be generated so as to solve the problems of difficult reading of two-dimension codes, high technological requirements on identifying and reading equipment and high costs and reduce the identification and reading requirements on bar codes, thereby realizing more popular and widespread application of the bar codes and lower cost of the identification device. Meanwhile, the generated color bar codes can be embedded with images or pictures, thereby further enriching forms of expression of the color bar codes. Moreover, according to the invention, the sole and uniform decoding process is ensured by integrating results of redundancy check and resilient encoding.
Owner:SHANGHAI CAIMA INFORMATION TECH

Method and system for VoIP over WLAN to bluetooth headset using advanced eSCO scheduling

A system and method are disclosed for reducing interference in simultaneous wireless LAN (WLAN) and wireless personal area network (PAN) signal handling in mobile wireless terminals having both a WLAN and a PAN interface. The wireless terminal includes a first transceiver operating in the PAN network in a communications band and a first communications protocol transmitting first data units. The wireless terminal also includes a second transceiver operating in the WLAN network in substantially the same communications band and a second communications protocol transmitting second data units. The wireless terminal further includes a controller coupled to the first and second transceivers, assigning a higher transmission priority to the second data units than to the first data units when transmission of the second data units overlaps a first occurring transmission of the first data units, to abort transmission of the first occurring data unit. The controller assigns a higher transmission priority to the aborted first data unit than to the second data units when transmission of the second data units overlaps the retransmission of the aborted first data unit, to transmit the aborted first data unit.
Owner:III HLDG 3
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