CN113948331A - Push type switch and communication equipment - Google Patents
Push type switch and communication equipment Download PDFInfo
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- CN113948331A CN113948331A CN202111195333.0A CN202111195333A CN113948331A CN 113948331 A CN113948331 A CN 113948331A CN 202111195333 A CN202111195333 A CN 202111195333A CN 113948331 A CN113948331 A CN 113948331A
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- 238000004891 communication Methods 0.000 title claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000004043 dyeing Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 abstract description 9
- 239000003990 capacitor Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000006467 substitution reaction Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
- H01H13/54—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state a predetermined time interval after removal of operating force, e.g. for staircase lighting
Abstract
The invention relates to the technical field of communication, and discloses a push type switch and communication equipment, wherein the push type switch comprises a spring device, a Dying gasp triggering pin and a level transmission pin; wherein, the spring device is arranged inside the push switch; the first end of the Dying gasp trigger pin is connected to the bottom of the push type switch, the second end of the Dying gasp trigger pin is connected to the level detection end, and the second end of the Dying gasp trigger pin outputs a first level by default; the first end of the level transmission pin is connected to the bottom of the spring device, the second end of the level transmission pin is connected to a second level, and the level value of the second level is not equal to the level value of the first level. According to the push type switch and the communication equipment, the spring device of the push type switch is utilized to realize the Dying gasp function, an energy storage capacitor is not required to be added, and the material cost and the PCB space are saved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a push type switch and communication equipment.
Background
The Dying gasp signal is a signal that when the system input voltage cannot meet the requirement of normal operation of the system, the system automatically sends a signal to the local side to tell the local side that the local side may not operate normally. With the continuous development and progress of electronic products, various related technologies have a major breakthrough, when a current CPE (Customer Premise Equipment) device loses power, a Dying gasp signal needs to be sent to a central office end to inform the central office end that the current CPE is about to lose power and cannot work, and the central office end releases a channel used by the CPE after responding to the signal.
In the prior art, after power failure occurs, power is continuously supplied to the equipment for a short time through an energy storage capacitor carried by CPE equipment, so that a Central Processing Unit (CPU) in the equipment can complete sending of a Dying gasp signal, but the energy storage capacitor of the CPE occupies the space of the CPE, the cost is high, and in order to ensure reliable sending of a Dying gasp message, the energy storage circuit generally needs to maintain the working of the CPE for a period of time (for example, a PON model corresponds to 10ms, and DSL equipment corresponds to 41-56 ms), so that the capacitance value of the energy storage circuit is large, the size is large, and the occupied space of a PCB is large. In other technologies, the boosting chip is used for boosting and powering down, the higher the voltage is, the longer the power down time is, so that the function of increasing the Dying gasp time is achieved, but the boosting chip is required to be introduced in the method, a small amount of energy storage capacitors are also required, and the cost is higher.
Disclosure of Invention
The invention provides a push switch and communication equipment, which utilize a spring device of the push switch to realize a Dying gasp function without adding an energy storage capacitor, thereby saving material cost and PCB space.
In order to solve the above technical problem, in a first aspect, an embodiment of the present invention provides a push switch, where the push switch includes a spring device, a Dying gasp trigger pin, and a level transmission pin; wherein the content of the first and second substances,
the spring device is arranged inside the push switch;
the first end of the Dying gasp trigger pin is connected to the bottom of the push type switch, the second end of the Dying gasp trigger pin is connected to the level detection end, and the second end of the Dying gasp trigger pin outputs a first level by default;
the first end of the level transmission pin is connected to the bottom of the spring device, the second end of the level transmission pin is connected to a second level, and the level value of the second level is not equal to the level value of the first level.
As a preferable scheme, a distance between the first end of the Dying gasp trigger pin and the first end of the level transfer pin is a preset compression distance of the spring device.
Preferably, the rebound time of the spring device is a preset time.
Preferably, the preset time is 10ms to 20 ms.
Preferably, the preset time is 41ms to 66 ms.
In order to solve the technical problem described above, in a second aspect, an embodiment of the present invention provides a communication apparatus including the push switch according to any one of the first aspect.
Compared with the prior art, the push switch and the communication equipment provided by the embodiment of the invention have the beneficial effects that: by utilizing the time delay of a spring device in the push type switch, when the switch is pressed, the Dying gasp signal is triggered, at the moment, the input power supply of the system is not powered off, the Dying gasp signal can be normally sent out, energy is not required to be maintained by an energy storage capacitor, and the material cost and the PCB space are saved.
Drawings
In order to more clearly illustrate the technical features of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is apparent that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on the drawings without inventive labor.
FIG. 1 is a schematic structural diagram of a preferred embodiment of a push switch provided in the present invention;
fig. 2 is a schematic structural diagram of a preferred embodiment of a push switch provided by the present invention.
Detailed Description
In order to clearly understand the technical features, objects and effects of the present invention, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. Other embodiments, which can be derived by those skilled in the art from the embodiments of the present invention without inventive step, shall fall within the scope of the present invention.
Fig. 1 is a schematic structural diagram of a push switch according to a preferred embodiment of the present invention.
As shown in fig. 1, the push switch includes a spring device 1, a Dying gasp trigger pin 2, and a level transmission pin 3; wherein the content of the first and second substances,
the spring device 1 is arranged inside the push switch;
the first end of the Dying gasp trigger pin 2 is connected to the bottom of the push type switch, the second end of the Dying gasp trigger pin 2 is connected to the level detection end, and the second end of the Dying gasp trigger pin 2 outputs a first level by default;
the first end of the level transmission pin 3 is connected to the bottom of the spring device 1, the second end of the level transmission pin 3 is connected to a second level, and the level value of the second level is not equal to the level value of the first level.
Particularly, the push switch of the invention is mainly applied to CPE equipment.
When the CPE device is operating normally (i.e., powered on), if the push switch is pressed, the CPE device needs to send a Dying gasp signal to the central office. According to the invention, a Dying gasp triggering pin 2 is additionally arranged at the bottom of the push type switch, a level transmission pin 3 is connected to the bottom of a spring device 1, when the level transmission pin 3 is contacted with the Dying gasp pin, a circuit is in short circuit at the position, the second level of the level transmission pin 3 is transmitted to the Dying gasp pin 2, the level detection end detects that the level is changed and feeds back, and CPE equipment sends a Dying gasp signal after receiving the feedback, so that the Dying gasp function is realized.
It should be noted that the most common connection of the second end of the driving gasp pin 2 is an IO pin of the CPU, but all the connections are not necessarily IO pins connected to the CPU, and may also be connected to other devices or IC pins having a level change detection function, and the place where the second end of the driving gasp triggering pin 2 is connected only needs to have a level change identification function. For example, the high and low levels of the pin connected to the switching tube can control the switching tube to be turned on and off, and further control other devices connected to the switching tube, and the other devices control the AFE to complete the driving gasp signal transmission. Or an enable pin connected to some kind of power supply IC, when the level changes, the power supply IC works or does not work, and further triggers the AFE to send out a Dying gasp signal. The AFE device is an analog front-end amplifier, such as a DSL chip or a PON chip, and generally a CPU controls the AFE to communicate with an external local side, but the AFE itself is also an integrated IC and also has its own GPIO and control logic, the CPU can control the AFE to send out a Dyinggasp signal, and the AFE itself can also detect its own pin level to implement the Dyinggasp.
As an example, a schematic structural diagram of a preferred embodiment of a push switch to which the present invention is applied is shown in fig. 2.
The push switch shown in fig. 2 normally has 6 pins and a spring device 1. The two left input pins are connected with the DC output of the power adapter and used as the DC input of the switch. And the two suspension pins on the right side are connected with the input pin in a default state, the switch is in a disconnected state, and the rear-stage circuit has no power supply input. The two output pins on the right side are connected with the rear-stage circuit and used as the output of the switch, when the switch is pressed down, the input pins are connected with the output pins, the switch is conducted, and the rear-stage circuit has power supply input. When the push switch is pressed, the spring device 1 is compressed and rebounded, which is to be pressed again next time, so as to realize the on-off switching operation.
The level transmission pin 3 at the bottom of the spring device 1 and the Dying gasp trigger pin 2 at the bottom of the switch are added in the invention. The inside of the Dying gasp triggering pin 2 is connected to a bottom contact of the switch, a high level is output by default, the outside of the Dying gasp triggering pin 2 is connected to a Dying gasp detection IO pin of the CPU, the inside of the level transmission pin 3 is connected to the bottom of the spring device 1, and the outside is grounded. When the switch is pressed, the spring device 1 is compressed downwards, the level transmission pin 3 is driven to be downwards and contacted with the Dying gasp trigger pin 2, the two pins are connected, the level of the Dying gasp trigger pin 2 is pulled to the ground, and therefore the CPU detects Dying gasp trigger information and sends a Dying gasp signal to the local side. As the whole system is powered off after the spring device 1 rebounds, the rebounding time of the spring device 1 is controlled well to meet the regulations of different protocols, and the CPU can be ensured to have enough time to process and send out the Dying gasp signal before the power is off.
According to the push-type switch provided by the invention, the Dying gasp signal is triggered when the switch is pressed down by utilizing the time delay of the spring device in the push-type switch, and the input power supply of the system is not powered off at the moment, and the Dying gasp signal can be normally sent out without depending on an energy storage capacitor to maintain energy, so that the material cost and the PCB space are saved.
In a preferred embodiment, the distance between the first end of the Dying gasp trigger pin 2 and the first end of the level transmission pin 3 is a preset compression distance of the spring device 1.
Specifically, the preset compression distance needs to satisfy the following condition: when the switch is pressed to the preset compression distance, the pressing switch is disconnected, and the spring device 1 can automatically rebound. The primary purpose is to prevent false triggering, preventing the situation where a switch is not open but the level transfer pin 3 and the Dying gasp trigger pin 2 are in contact by pressing lightly on the switch. It is pre-designed that when said spring means 1 is pressed to a certain deformation amount > a certain constant x, the switch will certainly open and the spring means 1 will start to bounce. After the switch is pressed, the spring device 1 can rebound to power off the system as long as the button is released, so that the mistaken triggering of the Dying gasp signal is avoided.
In a preferred embodiment, the spring device 1 has a rebound time of a predetermined time.
Specifically, the preset time needs to satisfy the following condition: and the requirements of the corresponding standard protocol on the Dying gasp time are met.
As an example, the time requirement for DSL access to the Dying gasp is 41 ms-56 ms, and the protocol is G.992.1/G.992.3/G.992.5/G.993.2 proposed by ITU-T.
As another example, the time requirement for PON access to the Dying gasp is 10ms, and the protocol is G.984 as proposed by ITU-T.
Wherein, regard the spring as the ideal oscillator model, do not consider the gravity and the air resistance of spring itself, after the spring is compressed, release once more and can regard as and be simple harmonic vibration, simple harmonic vibration displacement formula is:
x＝Acosωt (1)
the velocity is obtained by taking the first derivative of time t in equation (1):
v＝-Aωsinωt (2)
and (2) obtaining the acceleration by taking the first derivative of the time t:
a＝-Aω^2cosωt＝-ω^2x (3)
according to newton's law, the spring force:
F＝-kx＝ma (4)
the above formulas (1) to (4) are summarized as follows:
-kAsinωt＝-mAω^2sinωt (5)
calculating:
then, the time for the spring to return to the home position without damage can be obtained:
however, this time T is not equal to the time of Ding gasp. The timing of the Dying gasp is 1/4 cycles from the time the bottom terminal contacts are started to the time the spring springs open causing the system to power down. Therefore, the Dying gasp time is simply calculated as:
in the above formulas, m is the mass of the spring, k is the stiffness coefficient of the spring,
in addition, the finger of the press switch has certain detention time, and the detention time can also be counted into the working time of the dyeing gasp, because the spring sheet at the bottom of the spring is contacted, but the hand of a person does not release the switch, and the system is not powered off; if the spring is vertical to the ground, the gravity of the spring, air resistance, resistance caused by loads such as a key cap at the tail end of the spring and the like are considered, the resistance is the force for resisting the spring to restore the deformation, the larger the resistance is, the longer the spring restores, and the longer the action time of the Dying gasp is.
In a preferred embodiment, the preset time is 10ms to 20 ms.
Specifically, in this embodiment, a redundant time is further designed based on the 10ms access time required by the protocol g.984, wherein the redundant time is 10 ms. It will be appreciated that the redundant time may also be other values, i.e. the preset time may be designed as: t is t1+t2Wherein t is the preset time t1Access time, t, required for protocol G.9842For redundant time (t)2＞0)。
In a preferred embodiment, the preset time is 41ms to 66 ms.
Specifically, the embodiment also designs the redundancy time on the basis of the access time of 41ms to 56ms required by the protocol G.992.1/G.992.3/G.992.5/G.993.2. It is understood that the preset time can be designed as follows: t is t3+t4Wherein t is the preset time t3The access time, t, required by the protocol G.992.1/G.992.3/G.992.5/G.993.24For redundant time (t)4＞0)。
Correspondingly, the invention further provides communication equipment, and the equipment comprises the push type switch in any embodiment.
In the description of the present specification, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "beneath," and "beneath" a second feature includes the second feature being directly above and obliquely above the first feature, or simply meaning that the first feature is at a lesser level than the second feature.
The above disclosure provides many different embodiments, or examples, for implementing different features of the invention. The components and arrangements of the specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be noted that, for those skilled in the art, several equivalent obvious modifications and/or equivalent substitutions can be made without departing from the technical principle of the present invention, and these obvious modifications and/or equivalent substitutions should also be regarded as the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A push type switch is characterized in that the push type switch comprises a spring device (1), a Dying gasp trigger pin (2) and a level transmission pin (3); wherein the content of the first and second substances,
the spring device (1) is arranged inside the push switch;
the first end of the dyeing gasp trigger pin (2) is connected to the bottom of the push type switch, the second end of the dyeing gasp trigger pin (2) is connected to the level detection end, and the second end of the dyeing gasp trigger pin (2) outputs a first level by default;
the first end of the level transmission pin (3) is connected to the bottom of the spring device (1), the second end of the level transmission pin (3) is connected to a second level, and the level value of the second level is not equal to the level value of the first level.
2. The push switch of claim 1, wherein the distance between the first end of the Dying gasp trigger pin (2) and the first end of the level transfer pin (3) is a preset compression distance of the spring device (1).
3. Push switch according to claim 1, characterised in that the spring means (1) has a spring-back time of a predetermined time.
4. The push switch of claim 3 wherein the predetermined time is between 10ms and 20 ms.
5. The push switch of claim 3 wherein the predetermined time is between 41ms and 66 ms.
6. A communication device characterized in that it comprises a push switch as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111195333.0A CN113948331B (en) | 2021-10-14 | 2021-10-14 | Push type switch and communication equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111195333.0A CN113948331B (en) | 2021-10-14 | 2021-10-14 | Push type switch and communication equipment |
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| CN113948331A true CN113948331A (en) | 2022-01-18 |
| CN113948331B CN113948331B (en) | 2023-12-22 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046064A (en) * | 1989-03-28 | 1990-10-10 | 宋欢龄 | The function of automatic delay cut off electric switch |
| CN103580272A (en) * | 2013-11-15 | 2014-02-12 | 深圳市双赢伟业科技股份有限公司 | Time-delay circuit for outage of power source |
| JP2014072841A (en) * | 2012-10-01 | 2014-04-21 | Mitsubishi Electric Corp | Slave station device and power saving control method |
| CN104049549A (en) * | 2014-06-16 | 2014-09-17 | 天地融科技股份有限公司 | Electricity-saving control circuit and electronic equipment |
| CN104049717A (en) * | 2014-06-16 | 2014-09-17 | 天地融科技股份有限公司 | Power saving control circuit and electronic equipment |
-
2021
- 2021-10-14 CN CN202111195333.0A patent/CN113948331B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046064A (en) * | 1989-03-28 | 1990-10-10 | 宋欢龄 | The function of automatic delay cut off electric switch |
| JP2014072841A (en) * | 2012-10-01 | 2014-04-21 | Mitsubishi Electric Corp | Slave station device and power saving control method |
| CN103580272A (en) * | 2013-11-15 | 2014-02-12 | 深圳市双赢伟业科技股份有限公司 | Time-delay circuit for outage of power source |
| CN104049549A (en) * | 2014-06-16 | 2014-09-17 | 天地融科技股份有限公司 | Electricity-saving control circuit and electronic equipment |
| CN104049717A (en) * | 2014-06-16 | 2014-09-17 | 天地融科技股份有限公司 | Power saving control circuit and electronic equipment |
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