CN201522728U

CN201522728U - Radio-frequency attendance machine

Info

Publication number: CN201522728U
Application number: CN2009202059733U
Authority: CN
Inventors: 陈钦鹏
Original assignee: QIXIN STATIONERY CO Ltd SHENZHEN
Current assignee: QIXIN STATIONERY CO Ltd SHENZHEN
Priority date: 2009-10-16
Filing date: 2009-10-16
Publication date: 2010-07-07
Anticipated expiration: 2019-10-16

Abstract

The utility model relates to the field of electronic signal read-write equipment, in particular to a radio-frequency (RF) attendance machine. A sensor interface circuit connected to a main circuit board is further electrically connected with an infrared sensor. When a card holder approaches the attendance machine and punches the card on the attendance machine, the infrared sensor transmits a control signal to a singlechip circuit through a sensor interface circuit, so as to activate an RF oscillating circuit, and further so as to ensure normal card punching operation; and when the card holder goes far away from the attendance machine, the RF oscillating circuit is shut off, and meanwhile, the circuits are switched to minimum electricity consumption states, so as to reduce energy consumption. Meanwhile, all the circuits are arranged inside a machine body, so that the utility model has the advantages of water resistance, dust prevention, and the like.

Description

The radio frequency attendance recorder

[technical field]

The utility model relates to electronic signal read-write equipment field, specifically refers to a kind of radio frequency attendance recorder.

[background technology]

At present, enterprises and institutions are in order to write down employee's the situation of turning out for work, and using a kind of electronic signal read-write equipment gradually is the radio frequency attendance recorder, more than this equipment is adapted at using person-time, use under the environment harsh conditions.The radio frequency attendance recorder carries out signal exchange by radio-frequency card, radio-frequency card claims non-contact IC card again, its size shape size is consistent with common IC-card, but portion is embedded with a slice integrated circuit (IC) chip and an antenna within it, its principle of work is: when radio-frequency card induction radio frequency attendance recorder, antenna in the radio-frequency card produces electric energy by the electromagnetic wave coupling with the emission of radio frequency attendance recorder, and the integrated chip in radio-frequency card provides electric energy, thereby realizes the signal exchange between radio-frequency card and the radio frequency attendance recorder.Because the process of switching signal is noncontact, so long service life of radio frequency attendance recorder, and it is easy to operate, yet owing to be noncontact, common radio frequency attendance recorder needs to produce continuously radiofrequency signal, whether near checking card the district, that is to say that the radio frequency attendance recorder consumes the electric energy of certain power in working order all the time with detection, the consumption of wherein making reactance capacity is very big, can not reach the purpose of energy-conserving and environment-protective.

[utility model content]

The technical matters that the utility model need solve is radio frequency attendance recorder excessive defective of consumed power power in using the course of work, and provides a kind of good waterproof to have the radio frequency attendance recorder of low power consuming.

The utility model provides a kind of radio frequency attendance recorder, this device comprises: cabinet, power circuit, single chip circuit, radio-frequency interface circuit, strength circuit and antenna, wherein single chip circuit also is connected with a sensor interface circuitry, and described sensor interface circuitry also is electrically connected an infrared sensor.

Described single chip circuit, radio-frequency interface circuit, strength circuit and antenna all are installed on the main circuit board, and infrared sensor, antenna are installed on the panel of cabinet.

The utility model radio frequency attendance recorder, being provided with sensor interface circuitry on main circuit board connects, described sensor interface circuitry also is electrically connected an infrared sensor, when the holder comes into attendance recorder and carries out punching operation, infrared sensor just transmits a control signal by sensor interface circuitry to single chip circuit, the strength circuit is activated, to guarantee normal punching operation; After the holder was away from attendance recorder, the strength circuit turn-offed, and also circuit was placed minimum power consumption state simultaneously, thereby reached the purpose that reduces power consumption.Simultaneously, because circuit all is located at cabinet inside, have advantages such as water proof and dust proof.

[description of drawings]

Fig. 1 is the utility model user mode synoptic diagram;

Fig. 2 is the utility model circuit block diagram.

[embodiment]

The utility model is described in further detail below in conjunction with drawings and embodiments.

As shown in Figure 2, the utility model radio frequency attendance recorder, comprise power circuit 1, single chip circuit 2, radio-frequency interface circuit 5, strength circuit 6 and antenna 8, also have other peripheral circuits 7, as data storer, display driver, display, keyboard and clock circuit etc., wherein single chip circuit 2 also is connected with a sensor interface circuitry 3, described sensor interface circuitry 3 also is electrically connected an infrared sensor 4, and described single chip circuit 2, radio-frequency interface circuit 5, strength circuit 6 and antenna 8 all are installed on the main circuit board 9; Power circuit 1 provides the DC voltage of stable 5V and 12V to main circuit board 9; Single chip circuit 2 is as the core component of attendance recorder, its effect is to accept the control signal that transmits from sensor interface circuitry 3 and transmit control signal to radio-frequency interface circuit 5, and receiving radio-frequency interface circuit 5 feedacks, after this information handled, with its time signal recording storage that produces with clock circuit in data-carrier store, sensor interface circuitry 3 is electrically connected infrared sensor 4, its effect is that the information of checking card that in time infrared sensor 4 is transmitted is handled, and then effective information is passed to single chip circuit 2; Radio-frequency interface circuit 5 is connected with strength circuit 6, be connected with antenna 8 again, by antenna 8 read radio-frequency card information by radio-frequency interface circuit 5 authentication identification after, pass to single chip circuit 2; The display driver of other peripheral circuits 7 etc. is connected with single chip circuit 2 respectively, provides direct demonstration to personnel query, and is convenient and swift.

In actual applications, single chip circuit 2 is selected ATMEL89C52 type CPU for use, and radio-frequency interface circuit 5 and strength circuit 6 are selected MCM500 type integration product for use.

As shown in Figure 1, infrared sensor 4, antenna 8 are installed on the panel of cabinet.When the holder came into attendance recorder and carries out punching operation, infrared sensor just transmitted a control signal by sensor interface circuitry to single chip circuit, the strength circuit was activated, to guarantee normal punching operation; After the holder is away from attendance recorder, the strength circuit is turn-offed, also circuit is placed minimum power consumption state simultaneously, thereby reach the purpose that reduces power consumption.Compare with common attendance recorder, the power supply power consumption of the utility model attendance recorder can reduce about 80%, also prolongs the serviceable life of radio frequency attendance recorder simultaneously greatly.

Above-described only is better embodiment of the present utility model; should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the utility model creation design; can also make improvement, but these all belong to protection domain of the present utility model.

Claims

1. radio frequency attendance recorder, this device comprises: cabinet, power circuit, single chip circuit, radio-frequency interface circuit, strength circuit and antenna, it is characterized in that: single chip circuit also is connected with a sensor interface circuitry, and described sensor interface circuitry also is electrically connected an infrared sensor.

2. radio frequency attendance recorder according to claim 1 is characterized in that: described single chip circuit, radio-frequency interface circuit, strength circuit and antenna all are installed on the main circuit board, and infrared sensor, antenna are installed on the panel of cabinet.