CN212324176U - Number display telephone terminal for removing battery - Google Patents

Abstract

The utility model belongs to the technical field of communication equipment, and discloses a number display telephone terminal for a battery, which is provided with a stored electric energy unit which takes the electric energy existing on a two-line subscriber line of a stored program controlled switch as an energy storage element; the detection unit is connected with the electric energy storage unit and used for realizing current detection; and the display unit is connected with the detection unit, starts to supply power to the FSK display and decoding circuit of the telephone after the circuit detects the first ringing signal and finishes information display within a period of time. The battery-free transformation of the distributed HCD28(3) P/TSD number display telephone is realized, and the function of 'caller identification' is realized under the condition that the telephone is not provided with a battery. The device which is easily purchased in the market is utilized, the cost is low, and the refitting operation is simple.

Description

Number display telephone terminal for removing battery

Technical Field

The utility model belongs to the technical field of communication equipment, especially, relate to a number display telephone terminal who goes battery.

Background

According to statistics, if a waste battery is discarded in water, the harmful substances can pollute 60 thousands of liters of water, which is equivalent to the water consumption of 1 person and 1 year. If discarded in the soil, it can permanently contaminate 1 cubic meter of land. Heavy metal substances seeped out from the waste batteries pollute underground water and threaten human health. China is a big country for producing and consuming batteries, the annual output of the batteries is about 140 hundred million, and the annual output accounts for 1/3 of the world total amount.

The military program control telephone network fixed user terminal equipment-telephone stand-alone machine used by present distributing troops mainly has two main categories of ordinary telephone without incoming call display and telephone with incoming call display function. Wherein, the telephone without caller ID can work without discharging battery; the single telephone with the function of 'caller identification' needs to put 3 batteries and 5 batteries to provide caller identification and incoming and outgoing number recording.

Through the above analysis, the problems and defects of the prior art are as follows: the existing military program control telephone with the function of coming display needs to be provided with a battery, and the battery is discarded at any time after being used, so that the pollution to the land and water sources is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a number display telephone terminal of going battery.

The utility model is realized in such a way that a number display telephone terminal going to a battery is provided with a stored electric energy unit which takes the electric energy existing on a two-line subscriber line of a stored program controlled exchange as an energy storage element;

the detection unit is connected with the electric energy storage unit and used for realizing current detection;

and the display unit is connected with the detection unit, starts to supply power to the FSK display and decoding circuit of the telephone after the circuit detects the first ringing signal and finishes information display within a period of time.

Further, a voltage terminal V in the unit for storing electric energy_AVoltage terminal V_BRespectively connected with the input end of the ringing circuit of the telephone and the power supply end of the talking circuit,

the voltage terminal V_AVoltage terminal V_BAre connected with a super-farad capacitor C1, and the super-farad capacitor C1 is connected with a voltage end VO1 and a voltage end VO2 through a diode D2, a diode D3 and a diode D6.

Combine foretell all technical scheme, the utility model discloses the advantage that possesses and positive effect are:

firstly, the battery-free transformation of the distributed HCD28(3) P/TSD number display telephone is realized, and the function of 'caller identification' is realized under the condition that the telephone is not provided with a battery.

Secondly, the device which is easily purchased in the market is utilized, the cost is low, and the refitting operation is simple.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.

Fig. 1 is a schematic diagram of a prior art switch implementing caller identification.

Fig. 2 is a schematic diagram of the exchange versus incoming number data transfer.

Fig. 3 is a schematic diagram of the operation of the number display telephone terminal with battery removed according to the embodiment of the present invention.

Fig. 4 is a model diagram of a discharge process of the super capacitor provided by the embodiment of the present invention.

Fig. 5 is a circuit connection diagram of an ultracapacitor provided by an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

To the problem that prior art exists, the utility model provides a number display telephone terminal who goes battery, it is right to combine the figure below the utility model discloses do detailed description.

The caller identification information transmission and display (i.e. CID service) is a new service item provided to the called user according to the specification of the technical requirement standard of caller identification information transmission and display function of the post office, which means that the caller identification information such as the name, the calling date and time of the caller number and the like is displayed on the called user terminal equipment and stored for the user to look up. The basic method for implementing CID is that the originating exchanger transmits the calling number and the like to the terminating exchanger through an interoffice signaling system (for example, No.7 signaling system), and the terminating exchanger transmits the calling identification information to the called subscriber terminal device in a frequency shift keying FSK manner as shown in fig. 1.

The basic principle of the incoming call number display technology is that the exchange provides the user with the transmission of data in the format specific to the incoming call number, and the user telephone uses the decoder to complete the receiving and displaying. When the exchange sends out a first ringing signal, it sends out a series of modulated signals containing the information of the telephone number, date, time, etc. of the dialing party, as shown in fig. 2.

The main principle of the telephone terminal for displaying the number of the outgoing battery is that the electric energy existing on the two-wire subscriber line of the stored-program control exchange is used as the energy storage element to store the electric energy, when the circuit detects a first ringing signal, the circuit starts to supply power to the telephone FSK to display the decoding circuit, and the information display is completed in a period of time.

The circuit operating principle is shown in FIG. 3, where V_A、V_BThe charging circuit is respectively taken from the input end of a ringing circuit and the power supply end of a communication circuit of the telephone, the charging of a super farad capacitor C1 is realized by two paths, when the voltage at the two ends of the capacitor is higher than the reverse breakdown voltage of D1, U1 is electrified to work, 5V voltage is output by voltage stabilization, and the voltage is reduced by D2, D3 and D6 to obtain VO1 and VO2 which are supplied to an FSK decoding circuit of the telephone for use.

The super capacitor is a novel energy storage element with the performance between that of a conventional capacitor and that of a secondary battery. Compared with the traditional capacitor, the super capacitor has higher specific capacitance and energy density, and compared with a battery, the super capacitor has the characteristics of high power density, short charging and discharging time, good cycle performance, long service life, convenience in maintenance and the like. In a certain sense, the super capacitor has the double functions of the traditional capacitor and the secondary battery, the power density of the super capacitor is far higher than that of a common battery, the energy density of the super capacitor is far higher than that of the traditional capacitor, and the blank between the two traditional technologies is filled. The super capacitor can be used in extremely severe environments such as extremely low temperature and the like, and has no environmental pollution. Consider and realize the cost, the utility model discloses easily purchase on the selection market, and low price's super farad electric capacity of lamination formula realizes the energy collection storage.

In order to reduce the consumption of an additional circuit on electric energy and avoid influencing the work of other circuits of a telephone, an integrated voltage-stabilizing output chip with ultra-low static power consumption is adopted, the static current of the integrated voltage-stabilizing output chip is only a few microamperes, meanwhile, the complexity of a peripheral circuit is greatly simplified, and the stability of the circuit is improved. The whole circuit PCB has compact structure, is easy to be fixed by utilizing the internal gap of the telephone, and the original main circuits of the telephone, such as conversation, ringing, dialing, caller ID display FSK module and the like, are not changed. The power supply part of the FSK decoding module of the original phone is shown in fig. 5, wherein 3V and 4.5V voltages are supplied by the original battery and are instead provided by a super capacitor circuit, and the connection points are shown as points VO1 and VO2 in fig. 5. The method is characterized in that computer aided design and parameter scanning are completed by using Mulitisim software, and appropriate component numerical values such as R4, R5 and C1 are selected, so that the numerical values are obtained from the two-wire subscriber line. After the power is taken, the total working current of the telephone still does not exceed the current of the user working loop provided by the exchange equipment.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be covered within the protection scope of the present invention by those skilled in the art within the technical scope of the present invention.

Claims (2)

1. A number display telephone terminal for removing a battery is characterized in that the number display telephone terminal for removing the battery is provided with an electric energy storage unit which takes electric energy existing on a two-wire subscriber line of a stored program controlled switch as an energy storage element;

the detection unit is connected with the electric energy storage unit and used for realizing current detection;

and the display unit is connected with the detection unit, starts to supply power to the FSK display and decoding circuit of the telephone after the circuit detects the first ringing signal and finishes information display within a period of time.

2. The depattered number display telephone terminal of claim 1, wherein the voltage terminal V in the stored energy unit_AVoltage terminal V_BRespectively connected with the input end of the ringing circuit of the telephone and the power supply end of the talking circuit,

the voltage terminal V_AVoltage terminal V_BAre connected with a super-farad capacitor C1, and the super-farad capacitor C1 is connected with a voltage end VO1 and a voltage end VO2 through a diode D2, a diode D3 and a diode D6.

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