CN103346818A - HFC gain adjustment method, HFC transponder and HFC response system - Google Patents
HFC gain adjustment method, HFC transponder and HFC response system Download PDFInfo
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Abstract
The invention discloses an HFC gain adjustment method, an HFC transponder and an HFC response system. The HFC gain adjustment method comprises the following steps of detecting signal values of a ray machine/an amplifier, comparing the signal values with corresponding preset range values, determining a gain reference value which enables the signal values of the ray machine/the amplifier to be within the corresponding preset range, and conducting adjustment on gain of the ray machine/the amplifier according to the gain reference value. By means of detection of the signal values of the ray machine/the amplifier and comparison between the detected signal values and the corresponding preset range values, the gain reference value which enables the signal values of the ray machine/the amplifier to be within the preset range can be determined according a comparison result, gain of the ray machine/the amplifier can be adjusted according to a gain reference value, automatic adjustment of gain of the ray machine/amplifier can be achieved through the gain reference value, and the output stability of the ray machine/the amplifier is guaranteed.
Description
Technical field
The present invention relates to the hfc plant field, particularly a kind of HFC gain adjusting method, a kind of HFC transponder and a kind of HFC answering system.
Background technology
At present cable television system HFC(Hybrid Fiber-Coaxial, hybrid fiber coax) in, after normally by ray machine the cable TV RF radio frequency light signal that receives being converted to the signal of telecommunication, export to TV and play, or by amplifier to the decay in the transmission course compensate, signal exports to TV after amplifying and plays.And present amplifier/ray machine has fixed gain, that is to say the value of amplifier/ray machine output signal, be actually the value of the input signal that receives and this fixed gain and value.Because amplifier/ray machine is fixed gain, therefore, under the stable situation of input signal, it is stable that output signal also can keep.Yet, in the hfc plant of reality, the change of ambient temperature, supply power voltage all might cause the change of input signal, if input signal changes suddenly or changes bigger, cause input signal not in normal range (NR), output signal will produce distortion, directly influences the reception of TV, and, under the situation of amplifier/ray machine cascade, will influence the gain of next stage, thereby produce bigger distortion, influence the stability of TV output.
Summary of the invention
Based on this, at above-mentioned problems of the prior art, the object of the present invention is to provide a kind of HFC gain adjusting method, a kind of HFC transponder and a kind of HFC answering system, it can be adjusted automatically to the gain of the amplifier/ray machine of hfc plant, keeps the stability of TV output.
For achieving the above object, the present invention by the following technical solutions:
A kind of HFC gain adjusting method comprises step:
Detect the signal value of ray machine/amplifier;
Described signal value is compared with corresponding predetermined range value, determine to make the gain reference value of signal value in the preset range of described correspondence of ray machine/amplifier, and according to this gain reference value described ray machine/Amplifier Gain is adjusted.
A kind of HFC transponder is characterized in that, draws together detection module and gain regulation module, and described detection module comprises signal detection module:
Described signal detection module is for detection of the signal value of ray machine/amplifier;
Described gain regulation module, be used for according to gain reference value described ray machine/Amplifier Gain being adjusted, described gain reference value makes the yield value of signal value in described corresponding preset range of ray machine/amplifier for described signal value being compared afterwards with corresponding predetermined range value, determining.
A kind of HFC answering system comprises HFC transponder and service end, and described HFC transponder comprises detection module, gain regulation module and signal dispatcher module, and described detection module comprises signal detection module:
Described service end is used for sending the detection instruction to described HFC transponder;
Described signal dispatcher module is used for receiving described detection instruction, and should detect instruction to described detection module transmission;
Described signal detection module is used for the signal value according to described detection command detection ray machine/amplifier;
Described gain regulation module, be used for according to gain reference value described ray machine/Amplifier Gain being adjusted, described gain reference value makes the yield value of signal value in described corresponding preset range of ray machine/amplifier for described signal value being compared afterwards with corresponding predetermined range value, determining.
According to the scheme in the present embodiment, it is to detect by the signal value to ray machine/amplifier, and the signal value that detects compared with corresponding predetermined range value, determine to make the gain reference value that the signal value of ray machine/amplifier can be in this preset range according to comparative result, and according to this gain reference value ray machine/Amplifier Gain is adjusted, thereby can realize the automatic adjustment to ray machine/Amplifier Gain accordingly, guarantee the stability of ray machine/amplifier output.
Description of drawings
Fig. 1 is the schematic flow sheet of HFC gain adjusting method embodiment one of the present invention;
Fig. 2 is the schematic flow sheet of HFC gain adjusting method embodiment two of the present invention;
Fig. 3 is the structural representation of HFC transponder embodiment one of the present invention;
Fig. 4 is the structural representation of HFC transponder embodiment two of the present invention;
Fig. 5 is the structural representation of HFC transponder embodiment three of the present invention;
Fig. 6 is the structural representation of HFC transponder embodiment four of the present invention;
Fig. 7 is the structural representation of HFC transponder embodiment five of the present invention;
Fig. 8 is the structural representation of HFC answering system embodiment one of the present invention;
Fig. 9 is the structural representation of HFC answering system embodiment two of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, not in order to the present invention is limited.
In following explanation in conjunction with the embodiments, be that first embodiment to HFC gain adjusting method of the present invention sets forth, the embodiment at HFC transponder of the present invention, HFC answering system sets forth again.
Embodiment one
The schematic flow sheet of HFC gain adjusting method embodiment one of the present invention has been shown among Fig. 1.As shown in Figure 1, the HFC gain adjusting method in the present embodiment one comprises step:
Step S101: the signal value that detects ray machine/amplifier;
Step S102: described signal value is compared with corresponding predetermined range value, determine to make the gain reference value of signal value in the preset range of described correspondence of ray machine/amplifier;
Step S103: described ray machine/Amplifier Gain is adjusted according to this gain reference value.
According to the scheme in the present embodiment, it is to detect by the signal value to ray machine/amplifier, and the signal value that detects compared with corresponding predetermined range value, determine to make the gain reference value that the signal value of ray machine/amplifier can be in this preset range according to comparative result, and according to this gain reference value ray machine/Amplifier Gain is adjusted, thereby can realize the automatic adjustment to ray machine/Amplifier Gain accordingly, guarantee the stability of ray machine/amplifier output.
Wherein, the signal value here, can set based on actual needs, for example can be in the middle of the input signal power value, output signal power value, channel index, ray machine power etc. of ray machine/amplifier any one, also can be the combination in any in the middle of these indexs such as input signal power value, output signal power value, channel index, ray machine power.
Be example with the signal value for the input signal power value, when determining corresponding gain reference value, concrete mode can be: the output power value of setting is deducted detected this input signal power value, thereby obtain this ray machine/amplifier the yield value that should possess, thereby can determine corresponding gain reference value according to this yield value.
Be example with the signal value for the output signal power value, when determining corresponding gain reference value, concrete mode can be: the output power value of setting is deducted detected this output signal power value, thereby obtain the relative changing value of ray machine/Amplifier Gain, thereby can determine corresponding gain reference value according to this relative changing value.
Be example with the signal value for the channel index, detection to the channel index, can be understood as the EOC(Ethernet over COAX to being connected with ray machine/amplifier, the ether data are transmitted by coaxial cable) equipment, HFC net copper uranium ethernet devices such as CABLE MODEM, MOCA, HOMEPLUS for example, detect resulting channel index, owing to the channel index is directly proportional with input signal power, thereby can judge based on this channel index.When determining corresponding gain reference value, concrete mode can be: based on the relation between input signal power value and the channel index, determine the input signal power value, and the output power value of setting deducted this input signal power value, thereby obtain this ray machine/amplifier the yield value that should possess, thereby can determine corresponding gain reference value according to this yield value.
, for being example, ray machine power owing to ray machine power is directly proportional with output signal power, thereby can judge based on ray machine power with the signal value.When determining corresponding gain reference value, concrete mode can be: based on the relation between ray machine power and the output signal power value, determine the output signal power value, the output power value of setting is deducted detected this output signal power value, thereby obtain the relative changing value of ray machine/Amplifier Gain, thereby can determine corresponding gain reference value according to this relative changing value.
Wherein, above-mentioned definite gain reference value can be done different settings based on actual needs.Therein in a kind of implementation, this gain reference value can be ray machine/amplifier the yield value that should possess, i.e. input signal power value and this gain reference value sum output power value that equals to set.In another implementation, this gain reference value can be the relative changing value of ray machine/Amplifier Gain, i.e. the fixed gain of input signal power value, ray machine/amplifier and this relative changing value's sum, the output power value that should equal to set.In the scheme of the embodiment of the invention, specifically not which kind value is done concrete restriction to this gain reference value.
After obtaining above-mentioned gain reference value, can adjust ray machine/Amplifier Gain based on this gain reference value, so that the output signal value of ray machine/amplifier can be in the preset range of correspondence.Because ray machine/Amplifier Gain module has generally comprised two parts: gain part and adjustable damping part, the corresponding yield value of gain part is fixed, adjustable damping is partly by the corresponding different pad value of voltage, therefore, when ray machine/Amplifier Gain is adjusted, can be based on above-mentioned gain reference value and determine the value of corresponding control voltage, thereby by the adjustment of controlling voltage being realized the adjustment to ray machine/Amplifier Gain.
When concrete the adjustment, when gain reference value is the relative changing value of ray machine/Amplifier Gain, can calculate the relative changing value of control voltage according to the relative changing value of this gain, relative changing value by control voltage adjusts control voltage, thereby realizes the adjustment to ray machine/Amplifier Gain.Gain reference value be ray machine/amplifier should possess yield value the time, can be directly calculate the value of control voltage according to this yield value, and then realize adjustment to ray machine/Amplifier Gain by the adjustment to control voltage.Gain and the corresponding relation of controlling voltage, difference based on practical application and setting can have different settings, for example increment is more big, the value of corresponding control voltage is also more big, or gain is more big, the value of corresponding control voltage is more little, in the present invention program, gain and the corresponding relation of control voltage is not done concrete setting.
Embodiment two
The schematic flow sheet of HFC gain adjusting method embodiment two of the present invention has been shown among Fig. 2.In the scheme of present embodiment two, mainly be with the difference of above-described embodiment one, in the present embodiment earlier the magnitude of voltage to ray machine/amplifier detect.
As shown in Figure 2, the HFC gain adjusting method in the present embodiment two comprises step:
Step S201: detect the magnitude of voltage of ray machine/amplifier, and judge that this magnitude of voltage is whether in predetermined normal voltage scope, if enter step S202;
Step S202: the signal value that detects ray machine/amplifier;
Step S203: described signal value is compared with corresponding predetermined range value, determine to make the gain reference value of signal value in the preset range of described correspondence of ray machine/amplifier;
Step S204: described ray machine/Amplifier Gain is adjusted according to this gain reference value.
According to the scheme in the present embodiment, it is that first magnitude of voltage to ray machine/amplifier detects, and under the situation of magnitude of voltage in predetermined normal voltage scope of ray machine/amplifier, just further the signal value of ray machine/amplifier is detected, and the signal value that detects compared with corresponding predetermined range value, determine to make the gain reference value that the signal value of ray machine/amplifier can be in this preset range according to comparative result, and according to this gain reference value ray machine/Amplifier Gain is adjusted, thereby realize the automatic adjustment to ray machine/Amplifier Gain accordingly, guarantee the stability of ray machine/amplifier output.At the voltage of ray machine/amplifier under the situation in default normal voltage scope, illustrated that this ray machine/amplifier goes wrong, need change, ray machine/Amplifier Gain adjusted no longer possess in all senses, thereby further improved the efficient of HFC gain adjusting method.
Signal value in the present embodiment, gain reference value and the specific implementation that ray machine/Amplifier Gain is adjusted can be identical with the method among the invention described above embodiment one, will not give unnecessary details in detail at this.
According to the HFC gain adjusting method of the invention described above, the present invention also provides a kind of HFC transponder, below carries out illustrated in greater detail with regard to each embodiment of HFC transponder of the present invention.
Embodiment one
The structural representation of HFC transponder embodiment one of the present invention has been shown among Fig. 3.As shown in Figure 1, the HFC transponder in the present embodiment one includes detection module 201 and gain regulation module 202, and this detection module includes signal detection module 2011, wherein:
This signal detection module 2011 is for detection of the signal value of ray machine/amplifier;
This gain regulation module 202, be used for according to gain reference value described ray machine/Amplifier Gain being adjusted, described gain reference value makes the yield value of signal value in described corresponding preset range of ray machine/amplifier for described signal value being compared afterwards with corresponding predetermined range value, determining.
According to the scheme in the present embodiment, after signal detection module 2011 detects the signal value of ray machine/amplifier, by HFC transponder itself or external equipment this signal value is compared with corresponding predetermined range value, determine to make the gain reference value of signal value in this corresponding preset range of ray machine/amplifier, gain regulation module 202 is adjusted ray machine/Amplifier Gain according to this gain reference value then, make the signal value of ray machine/amplifier in the preset range of correspondence, thereby can realize the automatic adjustment to ray machine/Amplifier Gain accordingly, stable with the output that guarantees ray machine/amplifier.
Wherein, the signal value here, can set based on actual needs, for example can be in the middle of the input signal power value, output signal power value, channel index, ray machine power etc. of ray machine/amplifier any one, also can be the combination in any in the middle of these indexs such as input signal power value, output signal power value, channel index, ray machine power.
Accordingly, as shown in Figure 3, in present embodiment one, above-mentioned signal detection module 2011 specifically can comprise channel index collection module 20111 and/or power collection module 20112, wherein:
This channel index collection module 20111 is for detection of the channel information of the channel that is connected with ray machine/amplifier;
This power collection module 20112 is for detection of input power or the power output of ray machine/amplifier.
Be example with the signal value for the input signal power value, when determining corresponding gain reference value, concrete mode can be: the output power value of setting is deducted detected this input signal power value, thereby obtain this ray machine/amplifier the yield value that should possess, thereby can determine corresponding gain reference value according to this yield value.
Be example with the signal value for the output signal power value, when determining corresponding gain reference value, concrete mode can be: the output power value of setting is deducted detected this output signal power value, thereby obtain the relative changing value of ray machine/Amplifier Gain, thereby can determine corresponding gain reference value according to this relative changing value.
Be example with the signal value for the channel index, detection to the channel index, can be understood as the EOC(Ethernet over COAX to being connected with ray machine/amplifier, the ether data are transmitted by coaxial cable) equipment, HFC net copper uranium ethernet devices such as CABLE MODEM, MOCA, HOMEPLUS for example, detect resulting channel index, owing to the channel index is directly proportional with input signal power, thereby can judge based on this channel index.When determining corresponding gain reference value, concrete mode can be: based on the relation between input signal power value and the channel index, determine the input signal power value, and the output power value of setting deducted this input signal power value, thereby obtain this ray machine/amplifier the yield value that should possess, thereby can determine corresponding gain reference value according to this yield value.
, for being example, ray machine power owing to ray machine power is directly proportional with output signal power, thereby can judge based on ray machine power with the signal value.When determining corresponding gain reference value, concrete mode can be: based on the relation between ray machine power and the output signal power value, determine the output signal power value, the output power value of setting is deducted detected this output signal power value, thereby obtain the relative changing value of ray machine/Amplifier Gain, thereby can determine corresponding gain reference value according to this relative changing value.
Wherein, above-mentioned definite gain reference value can be done different settings based on actual needs.Therein in a kind of implementation, this gain reference value can be ray machine/amplifier the yield value that should possess, i.e. input signal power value and this gain reference value sum output power value that equals to set.In another implementation, this gain reference value can be the relative changing value of ray machine/Amplifier Gain, i.e. the fixed gain of input signal power value, ray machine/amplifier and this relative changing value's sum, the output power value that should equal to set.In the scheme of the embodiment of the invention, specifically not which kind value is done concrete restriction to this gain reference value.
Wherein, above-mentioned gain reference value, can be ray machine/amplifier the yield value that should possess, also can be the relative changing value of ray machine/Amplifier Gain, specifically can be determined by HFC transponder itself, also can be by HFC transponder accesses external equipment, the HFC transponder passes through to receive the gain reference value that external equipment sends, and according to the gain reference value that receives ray machine/Amplifier Gain is adjusted.In the present embodiment, specifically not which kind value is done concrete restriction to this gain reference value, also not to whom determines that gain reference value limits by.
As shown in Figure 3, the HFC transponder that provides in the present embodiment in detection module 201, can also include voltage detection module 2012.
Wherein, this voltage detection module 2012 for detection of the magnitude of voltage of ray machine/amplifier, and judges that this magnitude of voltage is whether in predetermined normal voltage scope;
At this moment, above-mentioned signal detection module 2011, be in the judged result of voltage detection module 2012 when being, detect the signal value of ray machine/amplifier.
During concrete work, voltage detection module 2012 detects the magnitude of voltage of ray machine/amplifier, and judge that this magnitude of voltage is whether in predetermined normal voltage scope, if not in predetermined normal voltage scope, illustrate that then this ray machine/amplifier goes wrong, need change, ray machine/Amplifier Gain is adjusted no longer be had meaning, therefore no longer the signal value of ray machine/amplifier be detected.If magnitude of voltage is in predetermined normal voltage scope, then detected the signal value of ray machine/amplifier by signal detection module 2011, and detect the signal value of ray machine/amplifier at signal detection module 2011 after, by HFC transponder itself or external equipment this signal value is compared with corresponding predetermined range value, determine to make the gain reference value of signal value in this corresponding preset range of ray machine/amplifier, gain regulation module 202 is adjusted ray machine/Amplifier Gain according to this gain reference value then, make the signal value of ray machine/amplifier in the preset range of correspondence, stable with the output that guarantees ray machine/amplifier.
Accordingly, owing to be earlier the magnitude of voltage of ray machine/amplifier to be detected, and under the situation of magnitude of voltage in predetermined normal voltage scope of ray machine/amplifier, just further the signal value of ray machine/amplifier is detected.At the voltage of ray machine/amplifier under the situation in default normal voltage scope, illustrated that this ray machine/amplifier goes wrong, need change, ray machine/Amplifier Gain adjusted no longer possess in all senses, thereby further improved the efficient that the HFC gain is adjusted.
After obtaining above-mentioned gain reference value, can adjust ray machine/Amplifier Gain based on this gain reference value, so that the output signal value of ray machine/amplifier can be in the preset range of correspondence.Because ray machine/Amplifier Gain module has generally comprised two parts: gain part and adjustable damping part, the corresponding yield value of gain part is fixed, adjustable damping is partly by the corresponding different pad value of voltage, therefore, when ray machine/Amplifier Gain is adjusted, can be based on above-mentioned gain reference value and determine the value of corresponding control voltage, thereby realize adjustment to ray machine/Amplifier Gain by the adjustment to control voltage, and then realize the adjustment to ray machine/Amplifier Gain.
When concrete the adjustment, when gain reference value is the relative changing value of ray machine/Amplifier Gain, can calculate the relative changing value of control voltage according to the relative changing value of this gain, relative changing value by control voltage adjusts control voltage, thereby realizes the adjustment to ray machine/Amplifier Gain.Gain reference value be ray machine/amplifier should possess yield value the time, can be directly calculate the value of control voltage according to this yield value, and then realize adjustment to ray machine/Amplifier Gain by the adjustment to control voltage.Gain and the corresponding relation of controlling voltage, difference based on practical application and setting can have different settings, for example increment is more big, the value of corresponding control voltage is also more big, or gain is more big, the value of corresponding control voltage is more little, in the present invention program, gain and the corresponding relation of control voltage is not done concrete setting.
Embodiment two
The structural representation of HFC transponder embodiment two of the present invention has been shown among Fig. 4, in present embodiment two, mainly has been with the difference of above-described embodiment one, self determined gain reference value by the HFC transponder in the present embodiment two.
As shown in Figure 4, the HFC transponder in the present embodiment two, the HFC transponder with respect in above-described embodiment one also includes:
At this moment, above-mentioned gain regulation module 202 is according to the gain reference value that gain comparison module 203 is determined ray machine/Amplifier Gain to be adjusted.
Identical in other technologies feature in the present embodiment two and above-described embodiment one will not be given unnecessary details in detail at this.
Embodiment three
The structural representation of HFC transponder embodiment three of the present invention has been shown among Fig. 5, in the scheme of present embodiment three, be mainly that with the difference of above-described embodiment one in the scheme of present embodiment three, the HFC transponder carries out the detection of signal based on the instruction of external equipment.
As shown in Figure 5, the HFC transponder in the present embodiment three includes signal dispatcher module 204, detection module 201 and gain regulation module 202, and this detection module includes signal detection module 2011, wherein:
This signal dispatcher module 204 is used for receiving detecting and instructs;
This signal detection module 2011 is used for the signal value according to described detection command detection ray machine/amplifier;
This gain regulation module 202, be used for according to gain reference value described ray machine/Amplifier Gain being adjusted, this gain reference value makes the yield value of signal value in described corresponding preset range of ray machine/amplifier for described signal value being compared afterwards with corresponding predetermined range value, determining.
According to the scheme in the present embodiment, when needs detect, send the detection instruction by external equipment to the HFC transponder, after the signal dispatcher module 204 of HFC transponder receives this detection instruction, signal detection module 201 detects according to the signal value of this detection instruction to ray machine/amplifier, after obtaining gain reference value according to signal value, ray machine/Amplifier Gain is adjusted according to this gain reference value by gain regulation module 202, thereby realize the automatic adjustment to ray machine/Amplifier Gain accordingly, guarantee the stability of ray machine/amplifier output.
Wherein, after signal detection module 2011 detects the signal value of ray machine/amplifier, can also this signal value be sent to the transmit leg that detects instruction by signal dispatcher module 204, can understand the concrete outcome that detects so that detect the transmit leg of instruction.
Accordingly, above-mentioned signal dispatcher module 204 also is used for the signal value that signal detection module 2011 detects is sent to the transmit leg that detects instruction.
Wherein, above-mentioned gain reference value, can be ray machine/amplifier the yield value that should possess, also can be the relative changing value of ray machine/Amplifier Gain, specifically can be determined by HFC transponder itself, also can be to tell the transponder to HFC again after being determined by external equipment, the HFC transponder be adjusted ray machine/Amplifier Gain according to the gain reference value that receives again.In the present embodiment, specifically not which kind value is done concrete restriction to this gain reference value, also not to whom determines that gain reference value limits by.
As shown in Figure 3, the HFC transponder that provides in the present embodiment three can also include temperature detecting module 2013 and/or illumination detection module 2014 in the detection module 201, wherein:
This temperature detecting module 2013 is for detection of the temperature of this transponder place environment;
This illumination detection module 2014 is for detection of the intensity of illumination of this transponder place environment.
The temperature that temperature detecting module 2013 detects, the intensity of illumination that illumination detection module 2014 detects all can send to the transmit leg that detects instruction, understands the residing ambient conditions of HFC transponder so that detect the transmit leg of instruction.During concrete the detection, this temperature detecting module 2013, illumination detection module 2014 can detect in real time, and temperature, the intensity of illumination that detects fed back to the transmit leg that detects instruction, and also can be based on and detect instruction and detect, do not do restriction in the present embodiment.
In the scheme of present embodiment three, the HFC transponder can communicate by signal dispatcher module 204 and external equipment.At this moment, the HFC transponder in the present embodiment three can be an autonomous device that can communicate with external equipment, also can be a part that is integrated in the EOC equipment.Under the situation of HFC transponder as the part of EOC equipment, the communication function of HFC transponder by EOC equipment is to communicate with other equipment.
Identical in other technologies feature in the present embodiment three and above-described embodiment one do not repeat them here.
Embodiment four
The structural representation of HFC transponder embodiment four of the present invention has been shown among Fig. 6, in the scheme of present embodiment four, mainly has been with the difference of above-described embodiment three, in the scheme of present embodiment, determined gain reference value by external equipment.
As shown in Figure 6, the HFC transponder in the present embodiment four includes signal dispatcher module 204, detection module 201 and gain regulation module 202, and this detection module includes signal detection module 2011, wherein:
This signal dispatcher module 204, be used for receiving detecting and instruct and gain reference value, and the signal value that signal detection module 2011 detects sent to the transmit leg that detects instruction, this gain reference value for the transmit leg that detects instruction with described signal value with after corresponding predetermined range value compares, determine to make the yield value of signal value in described corresponding preset range of ray machine/amplifier;
This signal detection module 2011 is used for the signal value according to described detection command detection ray machine/amplifier;
This gain regulation module 202 is used for according to described gain reference value described ray machine/Amplifier Gain being adjusted.
According to the scheme in the present embodiment, send the detection instruction by external equipment to the HFC transponder, after the signal dispatcher module 204 of HFC transponder receives this detection instruction, signal detection module 201 detects according to the signal value of this detection instruction to ray machine/amplifier, the signal value of detected ray machine/amplifier feeds back to external equipment by signal dispatcher module 204, external equipment compares this signal value with corresponding predetermined range value, determine to make the gain reference value of signal value in this corresponding preset range of ray machine/amplifier, and this gain reference value sent to the HFC transponder, after the signal dispatcher module 204 of HFC transponder receives this gain reference value, ray machine/Amplifier Gain is adjusted according to this gain reference value by gain regulation module 202, make the signal value of ray machine/amplifier in the preset range of correspondence, to stablize with the output that guarantees ray machine/amplifier.
Identical in other technologies feature in the present embodiment four and above-described embodiment three do not repeat them here.
Embodiment five
The structural representation of HFC transponder embodiment five of the present invention has been shown among Fig. 7, in the scheme of present embodiment five, mainly has been with the difference of above-described embodiment three, in the scheme of present embodiment, determined gain reference value by the HFC transponder.
As shown in Figure 7, the HFC transponder in the present embodiment five, the HFC transponder with respect in above-described embodiment three also includes:
At this moment, above-mentioned gain regulation module 202 is according to the gain reference value that gain comparison module 203 is determined ray machine/Amplifier Gain to be adjusted.
Identical in other technologies feature in the present embodiment five and above-described embodiment three will not be given unnecessary details in detail at this.
According to the HFC transponder of the invention described above, the present invention also provides a kind of HFC answering system.
The structural representation of HFC answering system embodiment one of the present invention has been shown among Fig. 8.In shown in Figure 8, this HFC answering system includes HFC transponder 20 and service end 30.
During specific implementation, can send to HFC transponder 20 by service end 30 and detect instruction, HFC transponder 20 detects the signal value of command detection ray machine/amplifier according to this after receiving this detection instruction:
Therein in a kind of implementation, after HFC transponder 20 detects signal value, this signal value is sent to service end 30, determine gain reference value by service end 30 according to this signal value, service end 30 sends to HFC transponder 20 according to the gain reference value of determining and adjusts instruction, include above-mentioned definite gain reference value in this adjustment instruction, HFC transponder 20 is adjusted ray machine/Amplifier Gain according to this adjustment instruction;
In another implementation, after HFC transponder 20 detects signal value, HFC transponder 20 self is determined gain reference value according to this signal value, and according to this gain reference value ray machine/Amplifier Gain is adjusted, in addition, HFC transponder 20 can also send to service end 30 with detected signal value, so that service end 30 is understood the state of HFC transponder 20.
The structural representation of HFC answering system embodiment two of the present invention has been shown among Fig. 9.In shown in Figure 9, this HFC answering system includes HFC transponder 20, service end 30 and mobile client 40.
During specific implementation, can send sense command to service end 30 by mobile client 40, service end 30 sends to HFC transponder 20 according to this sense command and detects instruction, and HFC transponder 20 detects the signal value of command detection ray machine/amplifier according to this after receiving this detection instruction:
Therein in a kind of implementation, after HFC transponder 20 detects signal value, this signal value is sent to service end 30, determine gain reference value by service end 30 according to this signal value, service end 30 sends to HFC transponder 20 according to the gain reference value of determining and adjusts instruction, include above-mentioned definite gain reference value in this adjustment instruction, HFC transponder 20 is adjusted ray machine/Amplifier Gain according to this adjustment instruction, the signal value that service end 30 receives, can send to mobile client 40, so that mobile client 40 is understood the state of HFC transponder 20 or ray machine/amplifier;
In another implementation, after HFC transponder 20 detects signal value, this signal value is sent to service end 30, service end 30 feeds back to mobile client 40 with this signal value, determine gain reference value by mobile client 40 according to this signal value, and send to service end 30 according to the gain reference value of determining and to adjust order, include above-mentioned definite gain reference value in this adjustment order, after service end 30 receives this adjustment order, adjust order according to this and send the adjustment instruction to HFC transponder 20, include above-mentioned definite gain reference value in this adjustment instruction, HFC transponder 20 is adjusted ray machine/Amplifier Gain according to this adjustment instruction;
In another implementation, after HFC transponder 20 detects signal value, HFC transponder 20 self is determined gain reference value according to this signal value, and according to this gain reference value ray machine/Amplifier Gain is adjusted, in addition, HFC transponder 20 detected signal values, can send to service end 30, so that service end 30 is understood the state of HFC transponder 20 or ray machine/amplifier, after service end 30 receives this signal value, can also further this signal value be sent to mobile client 40, be convenient to the state that mobile client 40 is understood HFC transponder 20 or ray machine/amplifier.
In addition, HFC transponder 20 can also be regularly detects temperature, the intensity of illumination of HFC transponder 20 place environment, and temperature, the intensity of illumination that detects sent to service end 30, after service end 30 receives, can further send to mobile client 40, make things convenient for service end 30, mobile client 40 to understand HFC transponder 20 or the residing concrete environment of ray machine/amplifier.
Wherein, between HFC transponder 20 and the service end 30, can connect by Ethernet, also can connect by EOC.During HFC transponder specific implementation, can be used as a separate equipment, also can be used as a module of the EOC equipment that is embedded in (for example HFC net copper uranium ethernet devices such as CABLE MODEM, MOCA, HOMEPLUS).And in conjunction with the implementation of the HFC answering system of mobile client, can send by mobile client 40 at any time and detect instruction and detect instruction, the adjustment of the HFC gain that realizes by the HFC transponder realizes portable office, can be convenient to field operation.
In the HFC answering system that above-mentioned Fig. 8,9 provides, the specific implementation of HFC transponder, concrete definite mode of gain reference value etc. can be identical with any one HFC transponder in above-described embodiment one to five, therefore, no longer HFC transponder 20 is given unnecessary details at this.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a HFC gain adjusting method is characterized in that, comprises step:
Detect the signal value of ray machine/amplifier;
Described signal value is compared with corresponding predetermined range value, determine to make the gain reference value of signal value in the preset range of described correspondence of ray machine/amplifier, and according to this gain reference value described ray machine/Amplifier Gain is adjusted.
2. HFC gain adjusting method according to claim 1, it is characterized in that, before the signal value that detects ray machine/amplifier, also comprise step: the magnitude of voltage that detects ray machine/amplifier, and judge that this magnitude of voltage is whether in predetermined normal voltage scope, if, the step that enters the signal value of described detection ray machine/amplifier.
3. a HFC transponder is characterized in that, comprises detection module and gain regulation module, and described detection module comprises signal detection module:
Described signal detection module is for detection of the signal value of ray machine/amplifier;
Described gain regulation module, be used for according to gain reference value described ray machine/Amplifier Gain being adjusted, described gain reference value makes the yield value of signal value in described corresponding preset range of ray machine/amplifier for described signal value being compared afterwards with corresponding predetermined range value, determining.
4. HFC transponder according to claim 3 is characterized in that:
Also comprise the gain comparison module, be used for described signal value is compared afterwards, determines to make the described gain reference value of signal value in described corresponding preset range of ray machine/amplifier with corresponding predetermined range value;
Perhaps
Also comprise signal dispatcher module, be used for receiving and detect instruction and/or adjust instruction, comprise described gain reference value in the described adjustment instruction;
Described signal detection module is used for the signal value according to described detection command detection ray machine/amplifier;
Described gain regulation module is used for according to described adjustment instruction described ray machine/Amplifier Gain being adjusted.
5. HFC transponder according to claim 4 is characterized in that:
Described detection module also comprises temperature detecting module and/or illumination detection module, and described temperature detecting module is for detection of the temperature of this transponder place environment; Described illumination detection module is for detection of the intensity of illumination of this transponder place environment, described signal dispatcher module, also the transmit leg that instructs to described detection for the intensity of illumination of the temperature that described temperature detecting module is detected and/or the detection of described illumination detection module sends;
And/or
Described signal detection module comprises channel index collection module and/or power collection module, described channel index collection module is for detection of the channel information of the channel that is connected with described ray machine/amplifier, and described power collection module is for detection of input power or the power output of described ray machine/amplifier.
6. according to any described HFC transponder of claim 3 to 5, it is characterized in that:
Described detection module also comprises voltage detection module, for detection of the magnitude of voltage of ray machine/amplifier, and judges that this magnitude of voltage is whether in predetermined normal voltage scope;
Described signal detection module is used in the judged result of described voltage detection module when being the signal value of detection ray machine/amplifier;
And/or
Described HFC transponder is integrated in the EOC equipment.
7. a HFC answering system is characterized in that, comprises HFC transponder and service end, and described HFC transponder comprises detection module, gain regulation module and signal dispatcher module, and described detection module comprises signal detection module:
Described service end is used for sending the detection instruction to described HFC transponder;
Described signal dispatcher module is used for receiving described detection instruction, and should detect instruction to described detection module transmission;
Described signal detection module is used for the signal value according to described detection command detection ray machine/amplifier;
Described gain regulation module, be used for according to gain reference value described ray machine/Amplifier Gain being adjusted, described gain reference value makes the yield value of signal value in described corresponding preset range of ray machine/amplifier for described signal value being compared afterwards with corresponding predetermined range value, determining.
8. HFC answering system according to claim 7 is characterized in that:
Described HFC transponder also comprises the gain comparison module, is used for described signal value is compared afterwards, determines to make the described gain reference value of signal value in described corresponding preset range of ray machine/amplifier with corresponding predetermined range value;
Perhaps
Described signal dispatcher module also is used for sending to described service end according to the signal value that described signal detection module is detected, and receives the adjustment instruction that described service end sends, and comprises described gain reference value in the described adjustment instruction;
Described gain regulation module is adjusted described ray machine/Amplifier Gain value according to the adjustment instruction that described signal dispatcher module receives;
Described service end, also be used for described signal value is compared afterwards, determines to make the gain reference value of signal value in described corresponding preset range of ray machine/amplifier with corresponding predetermined range value, and send described adjustment according to this gain reference value to described HFC transponder and instruct.
9. HFC answering system according to claim 7 is characterized in that:
Also comprise mobile client, be used for sending sense command to described service end;
Described service end is used for sending described detection instruction according to described sense command to described HFC transponder.
Perhaps
Also comprise mobile client, be used for sending sense command to described service end;
Described service end is used for sending described detection instruction according to described sense command to described HFC transponder;
Described service end also is used for described signal value is sent to described mobile client, and sends the adjustment instruction according to the adjustment order of the mobile client that receives to described HFC transponder, comprises described gain reference value in the described adjustment instruction;
Described mobile client, also be used for receiving the described signal value that described service end sends, described signal value and corresponding predetermined range value are compared the back, determine to make the described gain reference value of signal value in described corresponding preset range of ray machine/amplifier, and send to described service end according to this gain reference value and to adjust order, comprise described gain reference value in the described adjustment order.
10. according to any described HFC answering system of claim 7 to 9, it is characterized in that:
Described signal detection module comprises channel index collection module and/or power collection module, described channel index collection module is for detection of the channel information of the channel that is connected with described ray machine/amplifier, and described power collection module is for detection of input power or the power output of described ray machine/amplifier;
And/or
Described detection module also comprises temperature detecting module and/or illumination detection module, and described temperature detecting module is for detection of the temperature of this HFC transponder place environment; Described illumination detection module is for detection of the intensity of illumination of this HFC transponder place environment; Described signal dispatcher module also is used for the intensity of illumination of the temperature of described temperature detecting module detection and/or the detection of described illumination detection module is sent to described service end;
And/or
Described detection module also comprises voltage detection module, is used for the magnitude of voltage according to described detection command detection ray machine/amplifier, and judges that this magnitude of voltage is whether in predetermined normal voltage scope;
Described signal detection module is used in the judged result of described voltage detection module when being, according to the signal value of described detection command detection ray machine/amplifier;
And/or
Described HFC transponder is integrated in the EOC equipment, and described HFC transponder is communicated by letter with described service end by described EOC equipment.
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| CN112902991A (en) * | 2021-01-25 | 2021-06-04 | 上海兰宝传感科技股份有限公司 | Electromagnetic coding measurement method with automatic gain adjustment function |
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| CN108120891A (en) * | 2017-12-27 | 2018-06-05 | 成都芯通软件有限公司 | A kind of HFC amplifier reliabilities Auto-Test System |
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| CN101340244A (en) * | 2008-08-08 | 2009-01-07 | 宁波环球广电科技有限公司 | A light receiving module |
| CN202218196U (en) * | 2011-07-22 | 2012-05-09 | 浙江省广电科技股份有限公司 | Optical AGC control circuit for cable television optical receiver |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101340244A (en) * | 2008-08-08 | 2009-01-07 | 宁波环球广电科技有限公司 | A light receiving module |
| CN202218196U (en) * | 2011-07-22 | 2012-05-09 | 浙江省广电科技股份有限公司 | Optical AGC control circuit for cable television optical receiver |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112902991A (en) * | 2021-01-25 | 2021-06-04 | 上海兰宝传感科技股份有限公司 | Electromagnetic coding measurement method with automatic gain adjustment function |
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