CN114257692A - Communication equipment and method - Google Patents
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- CN114257692A CN114257692A CN202011026880.1A CN202011026880A CN114257692A CN 114257692 A CN114257692 A CN 114257692A CN 202011026880 A CN202011026880 A CN 202011026880A CN 114257692 A CN114257692 A CN 114257692A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/02—Telephonic communication systems specially adapted for combination with other electrical systems with bell or annunciator systems
- H04M11/025—Door telephones
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Abstract
The invention relates to identity recognition by combining a non-standard subaudio frequency code and a dual-tone multi-frequency DTMF code. Due to the stability of non-standard sub-audio codes and the rich number of available codes (i.e., 2)23Individual identifiable private identity mark) and in combination with the dual-tone multi-frequency code, the private identity identification of the communication equipment can be clearer, so that the possibility of same-frequency interference among the communication equipment of the same type is greatly reduced. In addition, one-to-many communication can be achieved by employing a combination of a preset subaudio code (which is different from the non-standard subaudio code) and a dual-tone multi-frequency DTMF code as a common identification token for a group of communication devices arranged to receive the subaudio signal represented by the preset subaudio code.
Description
Technical Field
The present invention relates to a communication apparatus and method. More particularly, the present invention relates to a communication apparatus and method for identification using a combination of non-standard sub-audio codes and Dual Tone Multi-Frequency (DTMF) codes.
Background
In the prior art, wireless doorbell and beeper adopt wireless coding. For example, one example of wireless encoding known in the art is frequency shift keying, FSK, encoding of a valid address and some valid data information for communication. The wireless doorbell and the pager are operated by the cooperation of the main machine and the auxiliary machine. For example, when the wireless doorbell auxiliary machine sends a call request to the wireless doorbell main machine, an address code and a corresponding signal are sent.
The same kind of wireless doorbell in the prior art is easy to generate same frequency interference, namely the problem of fuzzy identity recognition, under the condition that a plurality of devices are started simultaneously. That is, pressing the # 1 resident doorbell may result in a # 2 resident doorbell response in a dense layout scenario. In addition, the wireless doorbell is mostly suitable for single-family type, and one-to-many talkbacks cannot be carried out.
Similar problems exist with prior art pagers.
Disclosure of Invention
The invention provides a communication device and a method. The communication equipment and the method adopt the combination of non-standard subaudio frequency codes and dual-tone multi-frequency DTMF codes to carry out identity recognition. Due to the stability of non-standard sub-audio codes and the rich number of available codes (i.e., 2)23Individual identifiable private identity mark) and in combination with the dual-tone multi-frequency code, the private identity identification of the communication equipment can be clearer, so that the possibility of same-frequency interference among the communication equipment of the same type is greatly reduced. In addition, one-to-many communication can be achieved by employing a combination of a preset subaudio code (which is different from the non-standard subaudio code) and a dual-tone multi-frequency DTMF code as a common identification token for a group of communication devices arranged to receive the subaudio signal represented by the preset subaudio code.
According to a first aspect of the present invention there is provided a communications device having a combination of non-standard sub-audio codes and dual tone multi-frequency codes as a private identity identifier.
Due to the stability of non-standard sub-audio codes and the rich number of available codes (i.e., 2)23Individual identifiable identity marks) and combined with the dual-tone multi-frequency codes, the identity identification of the communication equipment can be clearer, so that the possibility of same-frequency interference among the similar communication equipment is greatly reduced.
According to a preferred embodiment of the communication device according to the invention, the non-standard sub-audio code is a 23-bit binary code.
According to a preferred embodiment of the communication device according to the present invention, the dtmf code is a 4-bit binary code.
According to a preferred embodiment of the communication device according to the invention, the communication device is capable of transmitting and receiving non-standard sub-audio signals represented by the non-standard sub-audio codes.
According to a preferred embodiment of the communication device of the present invention, a plurality of the communication devices collectively use a combination of a preset sub-audio code and a dual tone multi-frequency code as a common identification mark and are capable of receiving a sub-audio signal represented by the preset sub-audio code, wherein the preset sub-audio code is different from the non-standard sub-audio code.
By means of the public identity identifier, one-to-many communication between the communication devices is enabled.
According to a preferred embodiment of the communication device of the present invention, the number of said communication devices having said combination of preset sub-audio codes and dual tone multi-frequency codes as a common identification mark is determined according to application scenarios and geographical locations.
According to a preferred embodiment of the communication device according to the invention, the communication device is a wireless doorbell.
According to a preferred embodiment of the communication device according to the invention, the wireless doorbells with the same private identification are a master wireless doorbell and a slave wireless doorbell, respectively.
According to a preferred embodiment of the communication device of the present invention, the master wireless doorbell accepts a call request to establish a call in response to receiving the call request issued by the slave wireless doorbell, and the master wireless doorbell actively or passively ends the call after a period of time of communicating with the slave wireless doorbell; or the main wireless doorbell refuses the call request in response to receiving the call request sent out from the wireless doorbell.
According to a preferred embodiment of the communication device of the present invention, the plurality of main wireless doorbells collectively use a combination of a preset sub-audio code and a dual tone multi-frequency code as the common identification mark and can receive the sub-audio signal represented by the preset sub-audio code, wherein the preset sub-audio code is different from the non-standard sub-audio code.
According to a preferred embodiment of the communication device of the present invention, the number of the wireless doorbells having the combination of the preset sub-audio code and the dual-tone multi-frequency code as the public identity recognition mark is determined according to the application scene and the geographical position.
According to a preferred embodiment of the communication device according to the invention, the communication device is a pager.
In accordance with a preferred embodiment of the communication device of the present invention, a call request is sent from a caller to a caller; the call request at least comprises a combination of a nonstandard subaudio frequency signal represented by a nonstandard subaudio frequency code in the private identity identification mark of the slave caller and a dual-tone multi-frequency signal represented by a dual-tone multi-frequency code in the private identity identification mark of the slave caller.
In accordance with a preferred embodiment of the communication device of the present invention, the caller decodes the non-standard sub-tone code and the dtmf code in the call request to display the private identification of the slave caller in response to receiving the call request of the slave caller.
According to a preferred embodiment of the communication device of the present invention, the calling device accepts a call request, adjusts settings, and transmits the received non-standard subaudio signal in response to receiving the call request from the calling device, thereby establishing a call; or the calling device refuses the call request in response to receiving the call request sent by the calling device.
According to a preferred embodiment of the communication device according to the invention, the calling caller actively or passively ends the call after having made a call with the called slave for a period of time.
According to a preferred embodiment of the communication device of the present invention, the slave caller determines whether the master caller is in a call by the received signal strength indication before making a call request; and in response to the calling caller being in a call, the slave caller abandons sending a call request.
According to a preferred embodiment of the communication device of the present invention, the plurality of slave callers collectively have a combination of a preset sub-audio code and a dual tone multi-frequency code as a common identification mark and are capable of receiving a sub-audio signal represented by the preset sub-audio code, wherein the preset sub-audio code is different from the non-standard sub-audio code.
According to a preferred embodiment of the communication device of the present invention, the number of the slave callers having the combination of the preset subaudio code and the dtmf code as the common identification mark is determined according to the application scenario and the geographical location.
According to a preferred embodiment of the communication device according to the invention, the slave caller is implemented by a doorbell to which the master caller sends commands to control the door.
According to a preferred embodiment of the communication device according to the invention, the communication device is an intercom.
According to a second aspect of the present invention, there is provided a communication method for use between communication devices, the communication method comprising:
the communication device is configured to use a combination of non-standard sub-audio codes and dual-tone multi-frequency codes as the private identity identifier.
According to a preferred embodiment of the communication method according to the invention, said non-standard sub-audio code is a 23-bit binary code.
According to a preferred embodiment of the communication method of the present invention, the dtmf code is a 4-bit binary code.
According to a preferred embodiment of the communication method of the present invention, the communication method further comprises: the communication device is arranged to be capable of transmitting and receiving a non-standard sub-audio signal represented by the non-standard sub-audio code.
According to a preferred embodiment of the communication method of the present invention, the communication method further comprises: a plurality of said communication devices are arranged to collectively have a combination of a pre-set sub-audio code and a dual tone multi-frequency code as a common identity identifier and are arranged to be capable of receiving a sub-audio signal represented by said pre-set sub-audio code, wherein said pre-set sub-audio code is different from said non-standard sub-audio code.
According to a preferred embodiment of the communication method of the present invention, the communication method further comprises: and determining the number of the communication devices with the preset combination of the subaudio frequency codes and the dual-tone multi-frequency codes as the public identity identification according to the application scene and the geographic position.
According to a preferred embodiment of the communication method of the present invention, the communication method further comprises: a wireless doorbell is used as the communication device.
According to a preferred embodiment of the communication method of the present invention, the communication method further comprises: two wireless doorbells with the same private identity identification mark are respectively used as a master wireless doorbell and a slave wireless doorbell.
According to a preferred embodiment of the communication method of the present invention, the communication method further comprises: the master wireless doorbell accepts a call request to establish a call in response to receiving the call request sent by the slave wireless doorbell, and the master wireless doorbell actively or passively ends the call after a period of time of communicating with the slave wireless doorbell; or the main wireless doorbell refuses the call request in response to receiving the call request sent out from the wireless doorbell.
According to a preferred embodiment of the communication method of the present invention, the communication method further comprises: arranging a plurality of the main wireless doorbells to jointly use a combination of a preset sub-audio code and a dual-tone multi-frequency code as a public identity recognition mark, and to be capable of receiving a sub-audio signal represented by the preset sub-audio code, wherein the preset sub-audio code is different from the non-standard sub-audio code.
According to a preferred embodiment of the communication method of the present invention, the communication method further comprises: and determining the number of the wireless doorbells using the preset combination of the subaudio frequency codes and the dual-tone multi-frequency codes as the public identity identification according to the application scene and the geographic position.
According to a preferred embodiment of the communication method according to the invention, a caller is used as the communication device.
According to a preferred embodiment of the communication method of the present invention, the communication method further comprises: the slave caller sends a call request to the master caller; the call request at least comprises a combination of a nonstandard subaudio frequency signal represented by a nonstandard subaudio frequency code in the private identity identification mark of the slave caller and a dual-tone multi-frequency signal represented by a dual-tone multi-frequency code in the private identity identification mark of the slave caller.
According to a preferred embodiment of the communication method of the present invention, the communication method further comprises: the calling device responds to the call request of the slave calling device and decodes the nonstandard sub-sound codes and the dual-tone multi-frequency codes in the call request to display the private identity identification mark of the slave calling device.
According to a preferred embodiment of the communication method of the present invention, the communication method further comprises: the calling device receives a call request, adjusts the setting and transmits the call request with the received non-standard sub-audio signal in response to receiving the call request sent by the called device, so as to establish a call; or the calling device refuses the call request in response to receiving the call request sent by the calling device.
According to a preferred embodiment of the communication method of the present invention, the communication method further comprises: the calling caller actively or passively ends the call after talking with the slave caller for a period of time.
According to a preferred embodiment of the communication method of the present invention, the communication method further comprises: before the slave caller sends a call request, whether the master caller is in a call is judged through a received signal strength indication; and in response to the calling caller being in a call, the slave caller abandons sending a call request.
According to a preferred embodiment of the communication method of the present invention, the communication method further comprises: arranging a plurality of said slave callers to collectively have a combination of a pre-set sub-audio code and a dual tone multi-frequency code as a common identity identifier and to be able to receive a sub-audio signal represented by said pre-set sub-audio code, wherein said pre-set sub-audio code is different from said non-standard sub-audio code.
According to a preferred embodiment of the communication method of the present invention, the communication method further comprises: and determining the number of the slave callers with the combination of the preset subaudio frequency codes and dual-tone multi-frequency codes as a public identity identification mark according to an application scene and a geographic position.
According to a preferred embodiment of the communication method according to the invention, the slave caller is implemented by a doorbell to which the master caller sends commands to control the door.
According to a preferred embodiment of the communication method of the present invention, an interphone is used as the communication device.
According to a third aspect of the present invention, there is provided a computer readable storage medium having computer program code stored thereon, which when executed on a computer, causes the computer to perform the communication method of any one of claims 22-42.
It will be appreciated by a person skilled in the art that the technical effects as described in relation to the first aspect of the invention can be achieved according to the second and third aspects of the invention.
Drawings
The invention will be more readily understood by the following description in conjunction with the accompanying drawings, in which:
fig. 1 is a flow chart of a one-to-one conversation performed by a wireless doorbell according to the present invention.
Fig. 2 is a flow chart of a one-to-many conversation performed by the wireless doorbell according to the present invention.
Fig. 3 is a flow chart of a caller making a one-to-one call according to the present invention.
Figure 4 is a flow chart of a caller conducting a one-to-many call in accordance with the present invention.
It should be understood that these drawings are for illustration purposes only.
Detailed Description
Embodiments of the present invention are described in further detail below.
The general idea of the invention is to adopt the combination of non-standard sub-audio frequency codes and dual-tone multi-frequency DTMF codes to carry out identity recognition. Due to the stability of non-standard sub-audio codes and the rich number of available codes (i.e., 2)23Individual identifiable private identity mark) and in combination with the dual-tone multi-frequency code, the private identity identification of the communication equipment can be clearer, so that the possibility of same-frequency interference among the communication equipment of the same type is greatly reduced. In addition, one-to-many communication can be achieved by employing a combination of a preset subaudio code (which is different from the non-standard subaudio code) and a dual-tone multi-frequency DTMF code as a common identification token for a group of communication devices arranged to receive the subaudio signal represented by the preset subaudio code.
Sub-audio is a technique in which frequencies lower than the audio frequency (67Hz-254.1Hz) are transmitted together in addition to the audio signal. Since the frequency range is below that of standard audio, it is called sub-audio. Most walkie-talkies use 38 sets of standard sub-audio frequencies, namely 38 fixed sub-audio frequencies are selected between 67Hz and 254.1 Hz. Sub-tones that are not in these standard sub-tones are referred to as non-standard sub-tones. The nonstandard subaudio frequency has 23 bits and has 2 in total23And one, much more than the number of standard sub-tones.
In the present invention, communication devices include, but are not limited to, wireless doorbells, pagers, interphones, and the like. Embodiments of the present invention will be described in further detail below with reference to the accompanying fig. 1-4 by taking a wireless doorbell and a pager as examples.
-wireless doorbell
In the invention, the wireless doorbell is used as a private identity identification mark through the combination of a non-standard sub-audio code and a dual-tone multi-frequency code when the wireless doorbell leaves a factory. The master wireless doorbell and the slave wireless doorbell with the same private identity identification mark cooperate to operate.
The nonstandard subaudio code is represented by 23 bits in binary code, namely coexisting in 223A non-standard sub-audio code. DTMF code is represented as 4 bits in binary, i.e. coexisting in 24A dual tone multi-frequency DTMF code. If the wireless doorbell is used as the private identification through the combination of the non-standard sub-audio frequency code and the dual-tone multi-frequency code, and if the private identification of the master wireless doorbell is '010101111101010111101010101', the private identification of the slave wireless doorbell cooperating with the wireless doorbell is '010101111101010111101010101'.
The normal operation steps of the wireless doorbell for one-to-one communication are as follows:
step 11: a call request is made from the wireless doorbell, for example via a wireless transmitter.
Step 12: the master wireless doorbell judges whether the private identity identification mark of the slave wireless doorbell is the same as the private identity identification mark of the slave wireless doorbell.
If not, the call request is rejected in step 13. If so, the call request is accepted in step 14.
In addition, as in the prior art, after receiving the call request, the main wireless doorbell can send out a ring prompt tone to prompt that the call request is received.
And if the main wireless doorbell receives the call request, the loudspeaker is opened to carry out normal call. After the master wireless doorbell normally communicates with the slave wireless doorbell for a period of time, the communication can be actively ended through the master wireless doorbell. Or the master wireless doorbell passively ends the conversation when the master wireless doorbell is not communicated with the slave wireless doorbell for a period of time.
In addition, a group of the main wireless doorbells jointly use a combination of a preset subaudio code and a dual-tone multi-frequency code as a public identity identification mark and can receive the subaudio signal represented by the preset subaudio code, wherein the preset subaudio code is different from the non-standard subaudio code.
In addition, the number of the wireless doorbells with the preset combination of the subaudio frequency codes and the dual-tone multi-frequency codes as the public identity identification can be determined according to application scenes and geographic positions.
In one-to-many communication between a console and a set of multiple wireless doorbells:
step 21: the console transmits a preset subaudio code representing the subaudio signal. The preset sub-audio signal can be a standard sub-audio signal or a non-standard sub-audio signal, as long as the preset sub-audio signal is different from the sub-audio signal represented by the non-standard sub-audio code in the private identification mark of the wireless doorbell.
Step 22: and a group of wireless doorbells which take the combination of the preset subaudio frequency code and the DTMF code as a public identity identification mark receive the subaudio frequency signal. The public identity identification mark is manually preset in the group of the plurality of wireless doorbells or is preset when the group of the plurality of wireless doorbells leaves a factory, so that the group of the plurality of wireless doorbells can receive the sub-audio signal. It should be noted that the group of multiple wireless doorbells share a common identification for use in this "one-to-many communication". The different groups of public identity identifiers are different to distinguish different scenes and regions.
In addition, the wireless doorbell without the public identity identifier cannot receive the preset subaudio signal.
Therefore, one-to-many communication between the console and a group of multiple wireless doorbells is realized.
-pager
In the invention, the caller is taken as a private identity identification mark by combining a non-standard sub-audio code and a dual-tone multi-frequency code when leaving a factory. The calling device and the slave calling device are operated in a matching way.
In the invention, the slave caller uses the combination of non-standard sub-audio frequency codes and dual-tone multi-frequency codes as a private identity identification mark. The caller can selectively use the combination of non-standard sub-audio frequency code and dual-tone multi-frequency code as the private identity identification mark. Generally, in a group of callers, there are a plurality of slave callers and a master caller.
The encoding mode of the caller is similar to that of the wireless doorbell, and the description is omitted here.
The normal operation steps of the caller for one-to-one communication are as follows:
step 31: the slave caller sends a call request to the master caller. The slave caller uses the combination of non-standard sub-audio frequency code and dual-tone multi-frequency code as the private identity identification mark.
The call request at least comprises the combination of the non-standard sub-audio frequency signal represented by the non-standard sub-audio frequency code in the private identity identification mark of the slave caller and the dual-tone multi-frequency signal represented by the dual-tone multi-frequency code in the private identity identification mark of the slave caller. For example, if the non-standard sub-audio code in the private identity of the slave caller is "01010111110101011110101" and the dtmf code in the private identity of the slave caller is "0101", the call request should include at least a combination of the non-standard sub-audio signal represented by the non-standard sub-audio code "01010111110101011110101" and the dtmf signal represented by the dtmf code "0101".
Step 32: the calling device receives the call request to judge whether to accept the call request or reject the call request.
The caller rejects the call request in step 33 or accepts the call request in step 34.
As in the prior art, after receiving a call request, the caller can send out a ring tone to prompt that the call request is received.
If the caller accepts the call request, the caller decodes the non-standard sub-phonetic code and DTMF code in the call request to display the private identity of the slave caller at step 34. In addition, in step 34, the caller adjusts settings and transmits with the received non-standard sub-audio signal and turns on the speaker for normal conversation.
For example, if the caller receives a call request sent by the slave caller No. 1 and accepts the call request, the caller needs to adjust the settings and transmit a sub-audio signal represented by a non-standard sub-audio code in the received private identification tag of the slave caller No. 1 to make a call with the slave caller No. 1.
Then, if the caller receives the call request sent by the slave caller No. 2 after the call with the slave caller No. 1 is finished and receives the call request, the caller needs to adjust the setting and transmit the subaudio frequency signal represented by the non-standard subaudio frequency code in the received private identity identification mark of the slave caller No. 2 to make a call with the slave caller No. 2.
After the calling device normally communicates with the slave calling device for a period of time, the calling device can actively end the communication through the calling device. Or the calling device passively finishes the conversation when the calling device does not communicate with the slave calling device for a period of time.
Further, it should be noted that before a call request is issued from a caller, it is determined whether the caller is in a call by a Received Signal Strength Indication (RSSI) Indication; and, in response to the caller being in a call, the slave caller abandons sending the call request.
In addition, a group of multiple slave callers commonly use a preset sub-audio code as a public identity identification mark and can receive the sub-audio signal represented by the preset sub-audio code, wherein the preset sub-audio code is different from the non-standard sub-audio code.
The number of the slave callers with the preset subaudio code as a public identity identifier can be determined according to application scenes and geographic positions.
In one-to-many communication of a master caller with a plurality of slave callers in a group of callers:
step 41: the caller transmits a preset subaudio signal represented by the subaudio code. The preset sub-audio signal may be a standard sub-audio signal or a non-standard sub-audio signal, as long as the preset sub-audio signal is different from the sub-audio signal represented by the non-standard sub-audio code in the private identity identifier of the slave caller.
Step 42: and a plurality of slave callers which take the combination of the preset subaudio frequency codes and DTMF codes as a public identity identification mark receive the subaudio frequency signals. Since the common identification flag is artificially preset in the slave callers or is preset when the slave pagers leave the factory, the slave pagers can receive the preset sub-audio signal. It should be noted that multiple slave callers in a group share a common identification for use in this "one-to-many communication". The different groups of public identity identifiers are different to distinguish different scenes and regions.
In addition, the callers other than the slave callers in the group call are not able to receive the sub-audio signal.
Therefore, one-to-many communication between one calling device and a plurality of slave calling devices in a group of calling devices is realized.
In addition, the slave caller is realized by a doorbell. The caller sends a command to the doorbell to control the door.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims. It is to be understood that the scope of the invention is defined by the claims.
Claims (10)
1. A communication device, wherein the communication device uses a combination of non-standard sub-audio codes and dual tone multi-frequency codes as a private identity identifier.
2. The communication device of claim 1, wherein the non-standard sub-audio code is a 23-bit binary code.
3. The communication device according to claim 1 or 2, wherein the dtmf code is a 4-bit binary code.
4. The communication device of claim 1 or 2, wherein the communication device is capable of transmitting and receiving non-standard sub-audio signals represented by the non-standard sub-audio codes.
5. The communication device according to claim 1 or 2, wherein a plurality of the communication devices collectively have a combination of a preset sub-audio code and a dual tone multi-frequency code as a common identification mark and are capable of receiving a sub-audio signal represented by the preset sub-audio code, wherein the preset sub-audio code is different from the non-standard sub-audio code.
6. The communication apparatus according to claim 5, wherein the number of the communication apparatuses having the combination of the preset sub-audio code and dual tone multi-frequency code as the common identification mark is determined according to an application scene and a geographical location.
7. The communication device of claim 1 or 2, wherein the communication device is a wireless doorbell.
8. The communication device according to claim 7, wherein the wireless doorbells with the same private identification mark are a master wireless doorbell and a slave wireless doorbell, respectively.
9. A communication method for use between communication devices, the communication method comprising:
the communication device is configured to use a combination of non-standard sub-audio codes and dual-tone multi-frequency codes as the private identity identifier.
10. A computer-readable storage medium, characterized in that computer program code is stored thereon, which when executed on a computer, causes the computer to execute the communication method of claim 9.
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