CN113948331B - Push type switch and communication equipment - Google Patents
Push type switch and communication equipment Download PDFInfo
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- CN113948331B CN113948331B CN202111195333.0A CN202111195333A CN113948331B CN 113948331 B CN113948331 B CN 113948331B CN 202111195333 A CN202111195333 A CN 202111195333A CN 113948331 B CN113948331 B CN 113948331B
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- push switch
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- dying gasp
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- 238000004891 communication Methods 0.000 title claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 238000012546 transfer Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 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
- 230000001960 triggered effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000000034 method Methods 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
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
-
- 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
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- Push-Button Switches (AREA)
Abstract
The invention relates to the technical field of communication and discloses a push switch and communication equipment, wherein the push switch comprises a spring device, a gyratory trigger pin and a level transmission pin; the spring device is arranged in the push switch; the first end of the Dying gasp trigger pin is connected to the bottom of the push 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 defaults to output a first level; 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 that of the first level. According to the push switch and the communication equipment, the spring device of the push 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 present invention relates to the field of communications technologies, and in particular, to a push switch and a communication device.
Background
The Dying gasp signal refers to a signal which can automatically send a signal to the local side when the input voltage of the system cannot meet the normal operation of the system, and tells the local side that the local type is likely to fail to work normally. Along with the continuous development and progress of electronic products, various related technologies have also broken through greatly, when the current CPE (Customer Premise Equipment ) equipment is powered down, a marking gasp signal needs to be sent to the local side, the local side is informed that the current CPE is about to be powered down and cannot work, and the local side responds to the signal and releases a channel used by the CPE.
In the prior art, after power failure occurs, the equipment is continuously and transiently powered through an energy storage capacitor carried by CPE equipment, so that a CPU (Central Processing Unit ) in the equipment can finish transmission of a Dying gasp signal, but the use of the CPE self energy storage capacitor occupies space of the CPE, the cost is high, and in order to ensure that the Dying gasp message can be reliably transmitted, the energy storage circuit generally needs to maintain the CPE to work 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 volume is large and the occupation 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 powering down time is, so that the function of increasing the Dying gasp time is achieved, but the method needs to introduce the boosting chip, needs a small amount of energy storage capacitors, and is high in cost.
Disclosure of Invention
The invention provides a push switch and communication equipment, which realize the Dying gasp function by utilizing a spring device of the push switch, and save material cost and PCB space without adding an energy storage capacitor.
In order to solve the technical problems described above, in a first aspect, an embodiment of the present invention provides a push switch, where the push switch includes a spring device, a driving gasp trigger pin and a level transmission pin; wherein,
the spring device is arranged in the push switch;
the first end of the Dying gasp trigger pin is connected to the bottom of the push 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 defaults to output a first level;
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, the distance between the first end of the driving gasp trigger pin and the first end of the level transmission pin is a preset compression distance of the spring device.
As a preferred embodiment, the spring device has a rebound time of a predetermined duration.
As a preferable scheme, the preset time is 10 ms-20 ms.
As a preferable scheme, the preset time is 41 ms-66 ms.
In order to solve the technical problem, in a second aspect, an embodiment of the present invention provides a communication device, where the communication device includes a push switch according to any one of the first aspects.
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 the spring device in the push switch, when the switch is pushed, the Dying gasp signal is triggered, and the system input power supply is not powered off at the moment, the Dying gasp signal can be normally sent out, the 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 that are required 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 that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a preferred embodiment of a push switch provided by the present invention;
fig. 2 is a schematic structural view of a preferred embodiment of a push switch according to the present invention.
Detailed Description
In order to make the technical features, objects and effects of the present invention more clearly understood, the following detailed description of the specific embodiments of the present invention will be given with reference to the accompanying drawings and examples. The following examples are only for illustrating the present invention, but are not intended to limit the scope of the present invention. Based on the embodiments of the present invention, other embodiments that can be obtained by a person skilled in the art without any inventive effort shall fall within the scope of the present invention.
Fig. 1 is a schematic structural view of a preferred embodiment of a push switch according to the present invention.
As shown in fig. 1, the push switch includes a spring device 1, a driving gasp trigger pin 2, and a level transmission pin 3; wherein,
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 switch, the second end of the Dying gasp trigger pin 2 is connected to a level detection end, and the second end of the Dying gasp trigger pin 2 defaults to output a first level;
the first end of the level transmission pin 3 is connected to the bottom of the spring device 1, and 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.
In particular, the push switch of the present invention is mainly applied to CPE devices.
When the CPE device is operating normally (i.e. in a power-on state), if the push switch is pressed, the CPE device needs to send a signaling gasp signal to the office. According to the invention, the level transfer pin 3 is connected to the bottom of the spring device 1, when the level transfer pin 3 contacts with the level transfer pin 2, the circuit is in short circuit, the second level of the level transfer pin 3 is transferred to the level transfer pin 2, the level detection end detects that the level is changed and fed back, and the CPE equipment sends a level transfer signal after receiving the feedback, so that the level transfer function is realized.
It should be noted that, the most common connection of the second end of the described Dying gasp pin 2 is the IO pin of the CPU, but not all the IO pins are necessarily connected to the CPU, and may be connected to other devices or IC pins having a level change detection function, where the second end of the described Dying gasp trigger pin 2 is connected, only the level change recognition function is required. For example, the high-low level of the pin connected to the switching tube can control the on-off of the switching tube, so that other devices connected with the switching tube are controlled, and the other devices are used for leading the AFE to complete the transmission of the Dying gasp signal. Or the enabling pin is connected to a certain type of power IC, and when the level changes, the power IC works or does not work, so that the AFE is triggered to send a signal of a driving gasp. The AFE equipment 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 is also an integrated IC and also has own GPIO and control logic, the CPU can control the AFE to send out a Dyinggasp signal, and the AFE can also realize Dyinggasp by detecting the pin level of the AFE.
As an example, a schematic structural view 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 left two input pins are connected with the DC output of the power adapter and serve as the DC input of the switch. The two suspension pins on the right side are connected with the input pins in a default state, the switch is in an off state, and the rear-stage circuit has no power input. The two output pins on the right side are connected with a post-stage circuit to be used as the output of the switch, when the switch is pressed down, the input pins are connected to the output pins, the switch is conducted, and the post-stage circuit is provided with a power supply input. After the push switch is pressed, the spring device 1 is compressed and bounces back, which is in order to press again next time, so that an on-off switching operation is achieved.
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 trigger pin 2 is connected to the bottom contact of the switch, the default outputs a high level, the outside of the Dying gasp trigger pin 2 is connected to the Dying gasp detection IO pin of the CPU, and the inside of the level transfer pin 3 is connected to the bottom of the spring device 1 and is grounded externally. When the switch is pressed, the spring device 1 is compressed downwards, the level transmission pin 3 is driven to downwards contact with the Dying gasp trigger pin 2, the two pins are connected, the level of the Dying gasp trigger pin 2 is pulled down to the ground, so that the CPU detects Dying gasp trigger information, and Dying gasp signals are sent to the local side. Because the whole system is powered off after the spring device 1 rebounds, the rebound time of the spring device 1 is controlled, so that the spring device meets the requirements of different protocols, and the CPU can be ensured to have enough time to process and send a Dying gasp signal before power off.
According to the push switch provided by the invention, by utilizing the time delay of the spring device in the push switch, the Dying gasp signal is triggered when the switch is pushed, and the system input power supply is not powered off at the moment, the Dying gasp signal can be normally sent out, so that energy is not required to be maintained by means of an energy storage capacitor, and the material cost and the PCB space are saved.
In a preferred embodiment, the distance between the first end of the driving gasp trigger pin 2 and the first end of the level transmission pin 3 is the preset compression distance of the spring device 1.
Specifically, the preset compression distance needs to satisfy the following conditions: when the switch is pressed to the preset compression distance, the push switch is opened and the spring device 1 can automatically rebound. The primary purpose is to prevent false triggering, and to prevent a situation in which the switch is pressed lightly, and the switch is not turned off but the level transfer pin 3 is in contact with the swing trigger pin 2. It is therefore necessary to design beforehand that when the spring means 1 is pressed to a certain deformation amount > a certain constant x, the switch will certainly be opened and the spring means 1 will begin to bounce. Since the spring device 1 will rebound and the system will be powered off as long as the button is released after the switch is pressed, there is no fear that the swing gasp signal will be triggered by mistake.
In a preferred embodiment, the rebound time of the spring means 1 is a preset time.
Specifically, the preset time is required to satisfy the following conditions: meets the requirements of the corresponding standard protocol on the Dying gasp time.
As an example, DSL access to the Dying gasp requires 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, PON accesses the gyring gasp with a time requirement of 10ms and the protocol is g.984 proposed by ITU-T.
The spring is regarded as an ideal vibrator model, the gravity and the air resistance of the spring are not considered, and after the spring is compressed, the spring is released again to be regarded as simple harmonic vibration, and a simple harmonic vibration displacement formula is as follows:
x＝Acosωt (1)
taking the first derivative of time t in equation (1) yields the velocity:
v＝-Aωsinωt (2)
and (2) obtaining acceleration by taking a first derivative of time t:
a＝-Aω^2cosωt＝-ω^2x (3)
according to newton's law, the spring force of a spring:
F＝-kx＝ma (4)
the formulas (1) to (4) are arranged as follows:
-kAsinωt＝-mAω^2sinωt (5)
and (3) calculating:
then the time to the spring to return to its original position can be obtained without damage:
however, the time T is not equal to the time of Ding gasp. The time of the Dying gasp is from the contact of the bottom terminal to the end of the power-off of the system caused by the spring opening, and the movement is 1/4 period. Therefore, simply calculate the Dying gasp time as:
in the above formulae, m is the mass of the spring, k is the stiffness coefficient of the spring,
in addition, the finger of the pressing switch has a certain retention time, and the retention time can also be calculated into the working time of the holding gasp because the bottom elastic sheet of the spring is contacted, but the hand of a person does not release the switch yet, and the system is not powered off; if the spring is vertical to the ground, the gravity of the spring is considered, and the air resistance and the resistance caused by loads such as a key cap at the tail end of the spring are all forces for preventing the spring from recovering deformation, the greater the resistance is, the longer the spring is recovered, so that the longer the acting time of the Dying gasp is.
In a preferred embodiment, the preset time is 10ms to 20ms.
Specifically, the embodiment further designs a redundancy time based on the 10ms access time required by the protocol g.984, wherein the redundancy time is 10ms. It will be appreciated that the redundancy time can also be other values, i.eThe preset time may be designed as: t=t 1 +t 2 Wherein t is the preset time, t 1 Access time, t, required for protocol g.984 2 For redundancy time (t 2 ＞0)。
In a preferred embodiment, the preset time is 41ms to 66ms.
Specifically, the embodiment designs the redundant time based on 41 ms-56 ms access time required by the protocol G.992.1/G.992.3/G.992.5/G.993.2. It can be appreciated that the preset time may be designed as: t=t 3 +t 4 Wherein t is the preset time, t 3 Access time, t, required for protocol g.992.1/g.992.3/g.992.5/g.993.2 4 For redundancy time (t 4 ＞0)。
Correspondingly, the invention also provides communication equipment, which comprises the push switch according to any embodiment.
In the description of the present specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the second feature being directly above and obliquely above the first feature, or simply indicating that the first feature is less level than the second feature.
The above disclosure provides many different embodiments, or examples, for implementing different structures of the invention. The foregoing description of specific example components and arrangements has been presented to simplify the present disclosure. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.
While the invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (5)
1. The push-type switch is characterized by comprising a spring device (1), a Dying gasp trigger pin (2) and a level transmission pin (3); wherein,
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 switch, the second end of the Dying gasp trigger pin (2) is connected to a 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;
the rebound time of the spring device (1) is preset time.
2. Push switch according to claim 1, characterized in that the distance between the first end of the driving gasp trigger pin (2) and the first end of the level transfer pin (3) is a preset compression distance of the spring means (1).
3. The push switch of claim 1, wherein the preset time is 10ms to 20ms.
4. The push switch of claim 1, wherein the preset time is 41ms to 66ms.
5. A communication device comprising a push switch as claimed in any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111195333.0A CN113948331B (en) | 2021-10-14 | 2021-10-14 | Push type switch and communication equipment |
Applications Claiming Priority (1)
| 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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| Publication Number | Publication Date |
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| CN113948331A CN113948331A (en) | 2022-01-18 |
| CN113948331B true CN113948331B (en) | 2023-12-22 |
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| CN202111195333.0A Active CN113948331B (en) | 2021-10-14 | 2021-10-14 | Push type switch and communication equipment |
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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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| CN113948331A (en) | 2022-01-18 |
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