CN2400979Y - Device of central exchange automatic hanging up after extension putting through - Google Patents
Device of central exchange automatic hanging up after extension putting through Download PDFInfo
- Publication number
- CN2400979Y CN2400979Y CN 98208418 CN98208418U CN2400979Y CN 2400979 Y CN2400979 Y CN 2400979Y CN 98208418 CN98208418 CN 98208418 CN 98208418 U CN98208418 U CN 98208418U CN 2400979 Y CN2400979 Y CN 2400979Y
- Authority
- CN
- China
- Prior art keywords
- main frame
- extension set
- state
- exchange line
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Abstract
The utility model relates to a device of central exchange automatic hanging up after putting through an extension, which is used for a main frame of a telephone which is provided with a doubling extension telephone, wherein, the telephone main frame and the extension telephone are respectively connected to a local line through a signal connector of the main frame and a signal connector of the extension telephone. The utility model comprises a local line voltage detecting device and a microcontroller, wherein, the local line voltage detecting device is electrically connected with the signal connector of the main frame; the microcontroller is connected with the output terminal of the voltage detecting device to detect and identify the states of the output terminal of the local line voltage detecting device. When the output terminal is in an (a) state, the extension telephone is in use and put through; when the output terminal is in a (b) state, the main frame is in a reserved state, and the extension telephone is lifted. The analog voltage values of two states are different, and a control signal is sent out to cancel the reserved state of the main frame and to automatically hang up the main frame, when the output terminal is in the (b) state.
Description
The utility model relates to a kind of extension set and mentions the automatic hang-off arrangements of main frame, and the extension set that refers to especially to be applied on the main station of tool one doubling extension set is mentioned the automatic hang-off arrangements of main frame.
In the use of telephone set, the application of doubling extension set is quite general situation now, its main frame 11 with see also being connected of doubling extension set 12 Fig. 1 shown in.The function series of " extension set mention main frame hang up automatically " is used to extension set 12 when obtaining the phone that transfers from main frame 11, and main frame 11 is hung up automatically.In detail, the user obtains incoming call and when desiring to go to extension set from main frame 11, the user can press reservation key (hold key) makes main frame enter a reserved state (hold mode), when the microphone of extension set 12 ends is raised use, main frame 11 is just removed the reserved state of main frame 11 automatically by " extension set is mentioned the automatic hang-off arrangements of main frame ", and make main frame 11 broken strings, so just do not cause main frame 11 to disturb the conversation of extension set 12 ends to carry out.
The hardware structure of reaching this " extension set mention main frame hang up automatically " function commonly used as shown in Figure 2, installing one microcontroller 22, a change-over circuit 21, an exchange line device for detecting voltage 23 and a voltage comparator circuit 24 in this main frame.This microcontroller 22 has reserved state detecting pin HOLD-DET PIN, it is to be with a digital output and input pins Digital I/O, the change in voltage that can be produced in response to the capacitor charge and discharge balancing effect in this change-over circuit 21, and the variation that produces high potential/electronegative potential, so that this microcontroller 22 detects the extension set situation of main frame 11 under reserved state.When extension set 12 was raised, signal influenced the current potential of this reserved state detecting pin HOLD-DET PIN through change-over circuit 21, thereby makes this microcontroller 22 carry out the action that automatically terminates the main frame reserved state and hang up main frame 11.
But whether connect appropriate or whether extension set is in situations such as user mode about the exchange line (promptly being connected to the holding wire of telecommunication bureau) of main frame, then need to be provided with again in addition an exchange line device for detecting voltage 23 and a voltage comparator circuit 24, exchange line device for detecting voltage 23 converts the variation of the electric current on this exchange line to a direct current magnitude of voltage and exports a voltage comparator circuit 24 to, through comparing the output variation that Hou produces high potential/electronegative potential with a specific voltage, again by exchange line state detecting pin (LINE_STATUS PIN, can also a digital output and input pins be Digital I/O) import exchange line that this microcontroller 22 carries out main frame and whether connect the judgement whether appropriate or extension set is in situations such as user mode.
Though above-mentioned interpretation means commonly used can be reached " extension set mention main frame hang up automatically " function, but because of its required additional hardware structure (change-over circuit 21, exchange line device for detecting voltage 23, voltage comparator circuit 24) a lot of, cause the hardware circuit complexity, manufacturing cost increases, and its circuit is subject to electrostatic test (E.S.D Testing) and influences and cause misoperation.
A main purpose of the present utility model is to provide the extension set on a kind of main station that makes a doubling extension set to mention the device that main frame is hung up automatically.
The utility model is that a kind of extension set is mentioned the automatic hang-off arrangements of main frame, and it is applied on the main station of tool one doubling extension set, and this main station and this doubling extension set are connected to an exchange line with a host signal joint and an extension set Signal connector respectively.The utility model device comprises: an exchange line device for detecting voltage, be electrically connected on this host signal joint, and it is to convert direct current magnitude of voltage output in order to the electric current on this exchange line is changed; One microcontroller, it is to be connected with the output of this exchange line device for detecting voltage with an analog-to-digital function pin, by the different analog voltages that output presented of this exchange line device for detecting voltage of detecting identification, and judges the residing state of telephone system.Be in reserved state and under the state that extension set is raised, this microcontroller sends a control signal reserved state of main frame is removed in main frame, and hang up main frame automatically.
According to above-mentioned conception, this microcontroller comprises that than the telephone system state that Cui can detect identification (1) host signal joint not is connected with this exchange line, (2) host signal joint is connected with this exchange line, and main frame be in the conversation of standby mode, (3) extension set use in and (4) main frame be in reserved state and extension set is raised.More than all states, can be judged by the different analog voltage scopes that output presented of distinguishing this exchange line device for detecting voltage.
The utility model means are sayed than the person of commonly using, can save part hardware construction (as change-over circuit, voltage comparator circuit), avoid the increase of hardware circuit complexity and manufacturing cost, and its circuit is not influenced by electrostatic test (E.S.DTesting), stability Cui, adjust simply, circuit is oversimplified, and therefore can solve the disappearance of located by prior art means.
In order to be described in detail by accompanying drawing below a more deep understanding the utility model:
Fig. 1: this is the square connection diagram of the main station of general tool one doubling extension set
Fig. 2: this is the circuit diagram that can reach this " extension set mention automatically hang up " function commonly used.
Fig. 3: the circuit box schematic diagram of the utility model preferred embodiment
Fig. 4: this is the decision flow chart of the utility model preferred embodiment.
See also Fig. 3, this be use the utility model extension set mention the automatic hang-off arrangements of main frame a telephone set system than Cui embodiment circuit box schematic diagram.This telephone set system comprises a main station 31 and a doubling extension set 32, and this main station 31 is connected to an exchange line 33 with a host signal joint 311 and an extension set Signal connector 321 respectively with this doubling extension set 32, to be connected to telecommunication bureau.The utility model device system is installed in this main station 31, and it comprises an exchange line device for detecting voltage 312, is electrically connected on this host signal joint 311, converts direct current magnitude of voltage output in order to the electric current on this exchange line is changed; One microcontroller 313, be connected with the output 3121 of this exchange line device for detecting voltage with analog-to-digital function pin (a LINE-STATUS PIN) 3131, since by exchange line 33 through the exchange line device for detecting voltage 312 magnitude of voltage X that changes out that detects, present different positions along with the user mode of main frame, extension set accurate, therefore can judge the state of present main frame, extension set by the detecting of this voltage level X.For example, be connected at the host signal joint not under the situation of this exchange line, the X value is about 0.5V (X (0V (V0 (X (0); The host signal joint is connected to this exchange line, and main frame is under the situation of standby mode, and the X value is about 5V (X (3.5V (V4 (X (V3); Under the situation during the extension set conversation is used, the X value is about 3.5V (X (3V (V3 (X (V2); During the main frame conversation was used, the X value was about 3V (V2); And main frame is in reserved state and extension set when being raised, and the X value generally changes into 2.7V (V1) by 3V (V2).Therefore, utilize the analog-to-digital function of microcontroller 313 to transfer this analog voltage to numerical data, just can be judged the telephone set system state.
Seeing also shown in Figure 4ly, is to carry out identification and the judgement method flow diagram of (if with general 8 analog-to-digital devices, its resolution is about 5 volts/255=0.0196 volt).At first, this microcontroller 313 reads the magnitude of voltage X through 3131 inputs of this analog-to-digital function pin in advance, and when microcontroller 313 be to detect this main frame 31 to be in a standby mode (microphone is not picked up, talk key is not pressed), and microcontroller 313 is that ((((X (3.5V), expression host signal joint 311 is connected with this exchange line 33 5V V3 X V4 as described above from the magnitude of voltage X that output read of exchange line device for detecting voltage 312.If not in this scope, then continue to judge whether the magnitude of voltage X that is read is that ((V0 (is generally 3.5V (X (0.5V) to X to V3, if, represent that then extension set is a state in using, (magnitude of voltage X is that (X (0 for V0 if not, (X (0V) represents that then host signal joint 311 is not connected with this exchange line 33 to 0.5V as described above.More than three kinds of situations can be used on the main station 31 display is set, and show by the control of microcontroller 312, remind the behaviour in service of the present phone of user.
When microcontroller 313 is to detect the main frame 31 non-standby modes that are in, and be in reserved state (keep key be pressed), and when host signal joint 311 is connected with this exchange line 33, microcontroller 313 is that V2 changes into V1 (generally changing into 2.7V by 3V) from the magnitude of voltage X that output read of exchange line device for detecting voltage 312, be X (V1, be judged as that main frame is in reserved state this moment and extension set is raised, so microcontroller sends the reserved state of signal relief main frame and return back to standby mode, finish the function of " extension set mention main frame hang up automatically ".
According to the above, the utility model means need not be provided with a plurality of hardware constructions (change-over circuit, voltage comparator circuit), avoid the increase of hardware circuit complexity and manufacturing cost, and its circuit is not influenced by electrostatic test (E.S.DTesting) and causes misoperation, stability is good, adjust simply, circuit is oversimplified, and thoroughly solves the defective of above-mentioned common technology means.
Claims (2)
1. an extension set is mentioned the automatic hang-off arrangements of main frame, it is applied on the main station of a tool one doubling extension set, it is characterized in that: this main station and this doubling extension set are connected to an exchange line with a host signal joint and an extension set Signal connector respectively, and its device comprises:
One exchange line device for detecting voltage is electrically connected on this host signal joint, and it is to convert direct current magnitude of voltage output in order to the electric current on this exchange line is changed;
One microcontroller, it is to be connected with the output of this exchange line device for detecting voltage with an analog-to-digital function pin, the output of detecting identification this exchange line device for detecting voltage is in state (a): during the extension set conversation is used, state (b): main frame is in reserved state and extension set two kinds of different analog voltages that state is presented down when being raised, and then sends a control signal when state (b) main frame is removed and hung up automatically to the reserved state of main frame.
2. extension set as claimed in claim 1 is mentioned the automatic hang-off arrangements of main frame, it is characterized in that: this microcontroller more comprises output that detecting picks out this exchange line device for detecting voltage in state (c): the host signal joint not is connected with this exchange line, state (d): the host signal joint is connected with this exchange line, and main frame is in the different analog voltages that two states such as standby mode time is presented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98208418 CN2400979Y (en) | 1998-01-15 | 1998-01-15 | Device of central exchange automatic hanging up after extension putting through |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98208418 CN2400979Y (en) | 1998-01-15 | 1998-01-15 | Device of central exchange automatic hanging up after extension putting through |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2400979Y true CN2400979Y (en) | 2000-10-11 |
Family
ID=33964144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98208418 Expired - Fee Related CN2400979Y (en) | 1998-01-15 | 1998-01-15 | Device of central exchange automatic hanging up after extension putting through |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2400979Y (en) |
-
1998
- 1998-01-15 CN CN 98208418 patent/CN2400979Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100452816C (en) | Device for providing distance power feed in long distance communication network | |
| US6665620B1 (en) | Utility meter having primary and secondary communication circuits | |
| CN101124774A (en) | Power using delivery to power supply device between detection and classification mode | |
| US4991196A (en) | Testing communications systems | |
| CA2118731C (en) | Apparatus and method for detecting telephone line status | |
| EP0689330A2 (en) | Telephone apparatus for caller ID information | |
| CN105048018B (en) | The charging method and device of a kind of terminal with data exchanging function | |
| CN2400979Y (en) | Device of central exchange automatic hanging up after extension putting through | |
| GB2215560A (en) | Ground start circuit | |
| EP1053621A1 (en) | System and method for automatic pbx detection | |
| EP0901264A3 (en) | Telecommunications line termination test | |
| CN211318588U (en) | Intelligent electric energy meter with low-frequency load shedding function | |
| CN1939043B (en) | Electrical wire joint fault detection | |
| US8515018B2 (en) | Automatic telephone line loop around system and method | |
| US7184544B2 (en) | Device and method for detecting presence of service on telephone line | |
| CN210376500U (en) | Join in marriage and become low-voltage detection timing device in transformer district | |
| CN210534295U (en) | Switching power supply cabinet with power supply monitoring equipment for communication system base station | |
| CN213581118U (en) | Extension detection circuit of alternating voltage | |
| CN2508473Y (en) | Passive isolator for data special line testing | |
| CN2738451Y (en) | Telemetering sensor and equipment supply electric source under communication network environment | |
| CN2134008Y (en) | Public telephone with calling card | |
| KR200330584Y1 (en) | Telephone Terminal Detecting Unit Having Line Opening Sense and Call Sense | |
| US6614881B1 (en) | Remotely operable telecommunications conductor test circuit and method for using the same | |
| US6411694B1 (en) | Arrangement for improving a telephone system | |
| CN1063304C (en) | Telephone line monitoring technique capable of unconditional stopping communication service |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20060526 Pledge (preservation): Preservation |
|
| PD01 | Discharge of preservation of patent |
Date of registration: 20061110 Pledge (preservation): Preservation |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20061201 Pledge (preservation): Preservation |
|
| PD01 | Discharge of preservation of patent |
Date of registration: 20070515 Pledge (preservation): Preservation |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |