Mobile electronic ticket checking system

The invention relates to a mobile electronic ticket examination system used in the gymnasium, which is composed of the mobile electronic ticket examination apparatus and the ticket examination management workstation. The ticket examination apparatus is composed of the bar code recognizer, the embedded controller, the front-end controller, the controlled door, the LED display screen and the wireless communication block. The ticket examination management workstation is composed of the wireless communication block and the ticket database. After the mobile ticket examination apparatus is connected to the ticket examination management workstation via the wireless Ethernet, the ticket examination can be done at any place in the gymnasium. Its advantage is as follows. The requirement of examining the ticket via adding the temporary bar code tickets can be satisfied at any time. And it is functional, flexible and convenient.

Induction intelligent total management system for storied building

The induction type intelligent comprehensive management system for storied large building is formed from induction IC card, induction card-reading machine, drive controller, computer and printer, etc. which are arranged by means of network interfaces according to the oriented sequence in the mode of bidirectional high-speed communication. By utilizing software source, said system can implement the following funtions of gate lodge control, security personnel watching the night, attendance record automatic charges management including water, gas and electricity charges and car park dispatching and charge management, etc.. Said system is convenient for application, accurate and reliable , and possesses high cost performance.

Electronic meeting multimedia control system

A control system for multimedia video conference is composed of video/audio signal sources, matrix switching, audio transmission, sound device, electronic demostration and system control center. Withmultimedia computer host and according to the hardware configuration and function requirement, three conference modes, three electronic education modes and five entertainment modes can be progammed and preset by text or operation control mode. There are program controlled bidirectional video/audio channels, large-screen display, and storage or print-out for high-fidelity replay and digitalized reproducing. Its advantages are simple structure and easy operation.

Wireless intelligent sound-control high-definition audio/video interaction entertainment system and device

The invention provides a wireless intelligent sound-control high-definition audio/ video interaction entertainment system and device. The system comprises eight devices: an intelligent mobile terminal, an intelligent wireless microphone, an intelligent wireless sensor, the interaction entertainment device, a high-definition sound device, a family cinema sound device, a high-definition television and a mobile vehicle-mounted sound device. The work process of the system is divided into three steps: S1) signal source acquisition; S2) central signal processing; and S3) audio /video output. The interaction entertainment device comprises a comprehensive service processing unit circuit module, a panel, a housing and a back cover plate which are combined to form an integrated body. On the basis of a concise frame structure and a hardware platform, with hardware being replaced by software which is given priority, and in a wireless transmission mode, the interaction entertainment system and device ...

Casting system and casting method for aluminum alloy sleeper beam of standard motor train unit steering frame

The invention discloses a casting system and a casting method for an aluminum alloy sleeper beam of a standard motor train unit steering frame. The system is characterized by being composed of random chilling blocks on the upper portion, a middle cavity and a lower metal bottom mold. Cross gates, gate sprues and gap gates are formed in the cavity, and a ceramic filter pipe is arranged at the connecting positions of the cross gates and the gate sprues. The casting method is characterized by comprising the steps that (1) molten aluminum is injected into a casting groove, and enters the gate sprues, and through slag removing of the ceramic filter piece, the molten aluminum enters the double-bridge cross gates, and then enters the cavity; (2) when the middle heat preservation risers, heat preservation risers at the two ends and heat preservation side risers are filled with the molten aluminum by one half, pouring is stopped, the molten aluminum level in the risers descends, and at the moment ...

Standard EMUs bogie cast aluminium alloy sleeper beam die block mould

The utility model provides a standard EMUs bogie cast aluminium alloy sleeper beam die block mould, it includes metal die block, replaceable module, locating pin, fastener, hang the axle, characterized by: replaceable module setting is provided with the locating pin in the upper end of metal die block in the metal die block, the both sides of metal die block be provided with the handling of being convenient for hang the axle and with top box complex fastener. The utility model has the advantages that, adoption metal die block reduces backing sand quantity as standard EMUs bogie cast aluminium alloy sleeper beam nowel in a large number, and is energy -concerving and environment -protective, and the metal die block has quick chilling action, reduces the casting stress of the production among the casting process, improves the foundry goods and is out of shape, improves size precision, adopts replaceable module, reduces monoblock metal pattern mutability at work, easily the drawback of fracture ...

VHF/UHF frequency band and super long distance radio type chain path communication net

The invention net work consists of a command and dispatching center, a base station, several relay stations (above five stages). Each relay station has two information transmission stations without any direct connection between them. The method of frequency recombination and infomation transmission is used to make that upgoing signal and downgoing signal are deviced strictly and noninterference. It can realize communication by radio chain circuit combined network in range at a distance more than 400 Km. Compared with traditional relay communication mode, it has advantages of small system noise, long communication distance, good voice quality,s imple structure and low investment.

Standard EMUs bogie aluminum alloy sleeper beam casting system

The utility model provides a method of standard EMUs bogie aluminum alloy sleeper beam casting system and casting, characterized by: by being provided the constituting along with type chill, the die cavity at middle part and the metal die block of lower part of upper portion, be provided with cross gate, sprue and gap running channel on the die cavity, placed the ceramic filter piece in the cross gate and the junction of sprue. Its casting process characteristic is: (1), injecting aluminium liquid into and watering the groove, aluminium liquid gets into the sprue, and is by entering into " two passing a bridge " cross gate after the slagging -off of ceramic filter piece, reentrant to the die cavity in, (2), will cast when aluminium liquid and stop the pouring when insulation riser, both ends insulation riser and heat preservation side riser are full of half, liquid level in the rising head drops, at this moment again with the direct pouring -in insulation riser of certain aluminium liquid ...

Method for producing pitch road surface modified mine material by migration method