JP2013198106A - Communication device, communication method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the following problem: The conventional communication device cannot control power consumption suited to a temperature of the communication device.SOLUTION: The communication device includes: a detection section that detects a temperature of the communication device; a storage section that stores a temperature range of the communication device and a control description corresponding to the temperature range of the communication device; and a control section that controls the communication device to suppress power consumption of the communication device on the basis of the control description corresponding to the temperature range of the communication device, to which the detected temperature belongs.

Description

  The present invention relates to a communication device, a communication method, and a program for performing communication via a network.

  In recent years, wireless high-speed access lines such as LTE (Long Term Evolution) and WiMAX (Worldwide Interoperability for Microwave Access) have appeared, and mobile routers have become widespread in order to effectively use them for communication. When using a mobile router on the go or on the move, it is common to take out only a terminal such as a personal computer and use the mobile router in a bag. If a mobile router is used in a poorly ventilated environment such as a cage, it is highly likely that the guaranteed operating temperature of the mobile router will be exceeded, causing the device to malfunction or, in the worst case, leading to device failure. Can be considered.

  Further, not only mobile routers but also routers and switches for wired communication require high-speed operation of communication devices and processors with the recent increase in communication speed, and the heat generated by the apparatus is a problem. There is a case.

  For example, Patent Literature 1, Patent Literature 2, and Patent Literature 3 can be cited as techniques for solving such a problem caused by heat generation of the communication device.

  Patent Document 1 discloses a technique for controlling communication when the temperature of a communication device increases.

  Patent Document 2 discloses a technique for controlling communication in accordance with the temperature of a communication device in order to guarantee frequency stability.

  Patent Document 3 discloses a technique for controlling communication in accordance with the temperature of a communication device in order to guarantee the accuracy of intermittent reception by the communication device and ensure communication reliability.

Special table 2011-521386 gazette JP 2008-236256 A JP 2004-015349 A

  However, in Patent Document 1, Patent Document 2, and Patent Document 3, all perform communication control according to the temperature of the communication device, but do not control power consumption. For this reason, in Patent Literature 1, Patent Literature 2, and Patent Literature 3, the power consumption of the communication device cannot always be suppressed.

  An object of the present invention is to provide a communication device, a communication system, a communication method, and a communication program that can solve the above-described problems.

  The communication device according to the present invention includes a detection unit that detects a temperature of the communication device, a storage range that stores a temperature range of the communication device, and a control content corresponding to the temperature range of the communication device, and the detection A control unit that controls the communication device so as to suppress power consumption of the communication device based on a control content corresponding to a temperature range of the communication device to which the temperature belongs. .

  The communication method according to the present invention detects the temperature of the communication device, and based on the control content corresponding to the temperature range of the communication device to which the detected temperature belongs, to suppress the power consumption of the communication device, The communication device is controlled.

  The program according to the present invention suppresses power consumption of the communication device based on processing for detecting the temperature of the communication device and control contents corresponding to the temperature range of the communication device to which the detected temperature belongs. And causing the computer to execute processing for controlling the communication device.

  According to the present invention, it is possible to suppress power consumption of a communication device according to the temperature of the communication device.

It is a figure which shows the structural example of the communication apparatus 1000 by Embodiment 1. FIG. 3 is a diagram illustrating a configuration example of a storage unit 1002 according to Embodiment 1. FIG. FIG. 6 is a diagram illustrating an operation of the first embodiment. It is a figure which shows the structural example of the communication apparatus 100 by Embodiment 2. FIG. It is a figure which shows the structural example of the detection part 111 by Embodiment 2. FIG. It is a figure which shows the structural example of the memory | storage part 112 by Embodiment 2. FIG. It is a figure which shows the structural example of the process part 114 by Embodiment 2. FIG. FIG. 10 is a diagram illustrating an operation according to the second embodiment. FIG. 10 is a diagram illustrating an operation according to the second embodiment.

  Embodiments according to the present invention will be described below with reference to the drawings.

[Embodiment 1]
Embodiment 1 according to the present invention will be described with reference to FIGS.

[Constitution]
First, FIG. 1 shows a configuration example of the communication apparatus 1000. According to FIG. 1, the communication apparatus 1000 includes a detection unit 1001, a storage unit 1002, and a control unit 1003. The communication device 1000 is connected to a network (not shown) to perform communication.

  The detection unit 1001 detects the temperature of the communication device 1000.

  Next, the storage unit 1002 will be described with reference to FIG. The storage unit 1002 stores the temperature range of the communication device 1000 and the control content corresponding to the temperature range. For example, in the example of FIG. 2, four temperature ranges of Ta, Tb, Tc, and Td are provided as the temperature range of the communication apparatus 1000. Control contents A, B, C, and D are associated with each temperature range. Typically, the storage unit 1002 stores control contents that can control the power consumption of the communication apparatus 1000 as the temperature increases.

  Finally, the control unit 1003 refers to the storage unit 1002 and detects a temperature range to which the temperature of the communication device 1000 detected by the detection unit 1001 belongs. The control unit 1003 controls the communication device 1000 so as to control the power consumption of the communication device 1000 based on the control content corresponding to the detected temperature range.

[Operation]
Next, the operation of the first embodiment will be described with reference to the flowchart of FIG.

  First, the detection unit 1001 detects the temperature of the communication device 1000 (S1001).

  Next, the control unit 1003 refers to the storage unit 1002 and detects the control content corresponding to the temperature range to which the temperature detected in S1001 belongs (S1002).

  Finally, the control unit 1003 controls the communication apparatus 1000 so as to suppress the power consumption of the communication apparatus 1000 based on the detected control content (S1003).

[effect]
As described above, the communication apparatus 1000 according to the first embodiment controls the communication apparatus 1000 so as to suppress the power consumption of the communication apparatus 1000 according to the detected temperature.

  Therefore, according to the first embodiment, the power consumption of the communication device can be suppressed according to the temperature of the communication device.

[Embodiment 2]
Next, Embodiment 2 according to the present invention will be described with reference to FIGS.

[Configuration of communication device]
FIG. 4 is a diagram illustrating a configuration example of the communication apparatus 100 according to the second embodiment. Referring to FIG. 4, the communication device 100 includes a processor 110, a DRAM (Dynamic Random Access Memory) 120, and a PHY 130. A DRAM 120 and a PHY 130 are connected to the processor 110.

  The DRAM 120 is a memory in which programs and data handled by the processor 110 are placed. A PHY (Physical layer device) 130 is a physical layer device for connecting to a network to which the communication apparatus 100 is connected. As the PHY 130, for example, a device that performs signal conversion for connecting to Ethernet (registered trademark) can be used. Between the processor 110 and the PHY 130, any interface having a general Ethernet PHY such as GMII (Giga Media Independent Interface), RGMII (Reduce GMII), or MII (Media Independent Interface) may be used.

  The processor 110 includes a detection unit 111, a storage unit 112, a control unit 113, and a processing unit 114. The detection unit 111 detects the temperature of the communication device 100. The storage unit 112 stores the temperature range of the communication device 100 and the control content corresponding to the temperature range. The control unit 113 executes control contents corresponding to the temperature of the communication device 100 detected by the detection unit 111 with respect to the processing unit 114 with reference to the storage unit 112. The processing unit 114 performs processing of the processor 110 based on an instruction from the control unit 113.

  Hereinafter, each part of the processor 110 will be described in detail.

[Configuration of detector]
FIG. 5 is a diagram illustrating a configuration example of the detection unit 111. According to FIG. 5, the detection unit 111 includes a temperature detection unit 1111, a comparison unit 1112, a comparison unit 1113, and a comparison unit 1114.

  The temperature detection unit 1111 detects the temperature of the communication device 100 or the processor 110. The comparison unit 1112, the comparison unit 1113, and the comparison unit 1114 preset the output from the temperature detection unit 1111 and compare it with a threshold value. Outputs of these comparison units are transmitted to the control unit 113. In the example of FIG. 5, three comparison units are provided. However, any number of comparison units may be provided as long as one or more comparison units are provided.

  In the example of FIG. 5, by using three comparison units, the temperature in the apparatus is determined in four stages and divided into four temperature ranges. Hereinafter, the four temperature ranges are expressed by Ta, Tb, Tc, and Td, respectively. The temperature range of these four steps increases from Ta to Tb, Tc, Td in this order. That is, Ta is the lowest temperature range, and Td is the highest temperature range. More specifically, the range of Ta can be set to 10 degrees or less, Tb is 10 degrees to 20 degrees, Tc is 20 degrees to 30 degrees, and Td is 30 degrees or more. When the temperature range is set as described above, three of 10 degrees, 20 degrees, and 30 degrees can be set as threshold values. When setting these three threshold values, for example, the comparison unit 1112 compares the temperature detected by the temperature detection unit 1111 with the threshold value of 10 degrees. Similarly, the comparison unit 1113 compares the detected temperature with 20 degrees, and the comparison unit 1114 uses 30 degrees as a threshold value.

[Configuration of storage unit]
Next, a configuration example of the storage unit 112 will be described with reference to FIG. The storage unit 112 stores the control content corresponding to each of the temperature ranges described above. Further, the control content can be divided into a plurality of control types according to the content.

  In the example of FIG. 6, control contents of six types of control are associated with each of the temperature ranges Ta, Tb, Tc, and Td. As an example, the control type “transmission / reception band” indicates that the control content is that the transmission / reception band remains unchanged at 100% when the temperature range is Ta.

  In addition, since the control content which the memory | storage part 112 memorize | stores is demonstrated in detail later, all items are not demonstrated here.

  In the example of FIG. 4, the storage unit 112 is described so as to exist in the processor 110, but it may be arranged on a memory outside the processor 110 such as the DRAM 120.

[Configuration of processing section]
Next, the configuration of the processing unit 114 will be described with reference to FIG. 7, the processing unit 114 includes a PCIe (PCI express) control unit 1141, a USB (Universal Serial Bus) control unit 1142, and a UART (Universal Asynchronous Transmitter) control unit 1143. The processing unit 114 includes a core 1144, a PHY control unit 1145, a DRAM controller 1146, a DMA (Direct Memory Access) controller 1147, a transmission queue 1148, a priority control unit 1149, and a bandwidth control unit 1150. Further, the processing unit 114 includes a MAC 1151, a reception queue 1152, a classification unit 1153, and an inspection unit 1154.

  The DRAM controller 1146 reads data from the DRAM 120 and writes data to the DRAM 120. The DMA controller 1147 monitors the state of the transmission queue 1148 or the reception queue 1152, and controls the DRAM controller 1146 as necessary to perform data transfer with the DRAM 120. The priority control unit 1149 performs priority control at the time of data transmission from the communication apparatus 100, and the bandwidth control unit 1150 performs bandwidth limitation at the time of data transmission.

  The inspection unit 1154 inspects the received data. The classification unit 1153 classifies the received data into a predetermined type. Reception queue 1152 temporarily stores reception data.

  The core 1144 is a central processing unit that operates by a program. The core 1144 reads and executes the instruction code of the DRAM 120 via the DRAM controller 1146, and processes data on the DRAM 120. In addition, the PHY control unit 1145 sets the operation of the PHY 130 based on an instruction from the core 1144.

  Further, the processing unit 114 may include a peripheral block for performing control other than Ethernet communication. In the example of FIG. 7, a PCIe control unit 1141 that controls PCI express, a USB control unit 1142 that controls USB communication, and a UART control unit 1143 that performs UART communication control are described. These control units are controlled from the core 1144 by a program.

  Next, the flow of communication data in the processing unit 114 will be described.

  First, data transmission will be described. The transmission data set on the DRAM 120 by the core 1144 is read by the DMA controller 1147 via the DRAM controller 1146 and transferred to the transmission queue 1148. The transferred data is subjected to priority control by the priority control unit 1149, and transmitted to the PHY 130 through the bandwidth control unit 1150.

  Next, data reception will be described. The data received by the PHY 130 is inspected by the inspection unit 1154 for data normality. The classification unit 1153 determines the packet type and the like and temporarily stores it in the reception queue 1152. Data temporarily stored in the reception queue 1152 is stored in the DRAM 120 by controlling the DRAM controller 1146 by the DMA controller 1147. This received data is processed by the core 1144.

  Further, in FIG. 7, an object to be controlled by the control unit 113 is indicated by a dotted line. Specifically, the PCIe control unit 1141, USB control unit 1142, UART control unit 1143, PHY control unit 1145, priority control unit 1149, bandwidth control unit 1150, classification unit 1153, and inspection unit 1154 are controlled. A specific description of the control by the control unit 113 will be described below.

  When the storage unit 112 is disposed on a memory outside the processor 110 such as the DRAM 120, the control unit 113 needs to control the DRAM controller 1146 to read data on the DRAM 120. Therefore, the control unit 113 performs control by generating a signal based on a predetermined communication method with the DRAM controller 1146.

[Operation]
The operation of the second embodiment will be described with reference to FIG. 8, focusing on the operation of the control unit 113.

  First, the temperature detection unit 1111 detects the temperature of the communication device 100 (S101).

  Next, the control unit 113 determines which control type in the storage unit 112 is to be used (S102).

  In addition, the temperature detected by the temperature detection unit 1111 in S101 is output to the comparison unit 1112, the comparison unit 1113, and the comparison unit 1114. The comparison unit detects the temperature range to which the detected temperature belongs by comparing the temperature detected in S101 with the threshold value set for each (S103).

  Note that the processing of S102 and S103 may be performed in parallel, or one of them may be performed first. When both the processes of S102 and S103 are completed, the process of S104 is started.

  Next, the control unit 113 detects the control content corresponding to the detected temperature based on the control type determined in S102 and the temperature range detected in S103 (S104). For example, when the temperature range to which the detected temperature belongs is Tb and the control type is determined to be “transmission / reception band”, the corresponding control content is “change transmission / reception band to 60%”. I understand.

  Finally, the control unit 113 controls the communication device 100 based on the control content detected in S104 (S105). In the above example, the control unit 113 controls the bandwidth control unit 1150 to change the transmission / reception bandwidth to 60% based on the control content detected in S104.

[Specific example of control contents: packet priority]
A specific example of the control content of the control unit 113 and how to determine it will be described with reference to FIG. FIG. 9 is a flowchart for explaining the process corresponding to S103 and S104 in FIG. 8 in more detail. FIG. 9 shows an operation flow when control related to the control type “packet priority” is performed according to the detected temperature.

  When the comparison unit 1112 of the detection unit 111 receives the temperature detected by the temperature detection unit 1111, the comparison unit 1112 determines whether or not the detected temperature is equal to or higher than the threshold value a set in the comparison unit 1112 (S 1031). If the detected temperature is lower than the threshold value a as a result of the comparison in S1031, the control unit 113 detects that the control content is to receive packets of priority P1, P2, P3, and P4 (S1041). . Here, it is assumed that P1 is the highest priority, and the priority decreases in the order of P2, P3, and P4.

  If the detected temperature is equal to or higher than the threshold value a as a result of the comparison in S1031, the comparison unit 1113 determines whether the detected temperature is equal to or higher than the threshold value b (S1032). If the detected temperature is lower than the threshold value b as a result of the comparison in S1032, the control unit 113 detects that the control content is to receive packets with the priority levels P1, P2, and P3 (S1042).

  Furthermore, if the detected temperature is equal to or higher than the threshold value b as a result of the comparison in S1032, the comparison unit 1114 determines whether the detected temperature is equal to or higher than the threshold value c (S1033). If the detected temperature is lower than the threshold value c as a result of the comparison in S1033, the control unit 113 detects that the control content is to receive packets of the priority levels P1 and P2.

  As a result of the comparison in S1033, when the detected temperature is equal to or higher than the threshold value c, the control unit 113 detects that the control content is to receive only the packet having the priority P1.

  When any one of S1041, S1042, S1043, and S1044 is completed, the communication apparatus 100 performs the process of S105 illustrated in FIG. In this specific example, the control unit 113 controls the priority control unit 1149 based on the determined control content. For example, when the process of S1042 is performed, the control unit 113 instructs the priority control unit 1149 to receive packets with the priorities P1, P2, and P3.

  As described above, the control unit 113 controls the communication apparatus 100 by detecting the control content corresponding to the temperature range to which the detected temperature belongs. In the above example, the control unit 113 receives all packets when the temperature is within a relatively low temperature range, and selects and receives only packets with higher priority as the temperature increases. Control. In this way, the storage unit 112 stores control details that can reduce power consumption as the temperature increases. As a result, when the temperature of the communication device 100 becomes high, control that suppresses power consumption becomes possible.

  The example in which the received packet is selected according to the priority according to the temperature range to which the temperature of the communication device 100 belongs has been described above. As described above, the control content for the communication apparatus 100 is not limited to the packet priority, and various types of control content as shown in FIG. 6 can be set.

  Hereinafter, the contents of the processing by each control type will be described, but since the operation flow is the same as that in FIG. 9, the detailed description is omitted. In particular, the comparison between the detected temperature and the threshold value is the same as that in FIG.

[Transmission / reception bandwidth control]
The control unit 113 limits the transmission / reception band of data communicated by the communication device 100 as follows according to the detected temperature. As shown in the row of the control type “transmission / reception band” in FIG. 6, for example, when the temperature range is Ta, the band is not changed, and when it is Tb, the transmission / reception band is limited to 60%.

Temperature range Ta: 100% (S1041)
Temperature range Tb: 60% (S1042)
Temperature range Tc: 40% (S1043)
Temperature range Td: 10% (S1044)
As described above, the control unit 113 controls the band control unit 1150 so as to change the transmission / reception band to a value corresponding to the detected temperature. Therefore, when the temperature of the communication device 100 increases, a small amount of data is transmitted and received, so that power consumption for processing of the communication device 100 can be suppressed.

[Packet classification]
The control unit 113 limits reception of packets as follows according to the type of packet determined by the classification unit 1153 according to the detected temperature. As shown in the row of the control type “packet classification” in FIG. 6, for example, when the temperature range is Ta, all types of packets are received. On the other hand, when the temperature range is Tb, the control unit 113 controls to receive the packet only when the TOS (Type of Service) value of the IP packet is 2 or more.

Temperature Ta: All packets are received (S1041)
Temperature Tb: Received if TOS is 2 or more (S1042)
Temperature Tc: Received when TOS is 4 or more (S1043)
Temperature Td: Received if TOS is 6 or more (S1044)
As described above, the control unit 113 instructs the classification unit 1153 which type of packet is received according to the detected temperature. Therefore, when the temperature of the communication device 100 increases, a small number of packets are received, so that power consumption required for processing of the communication device 100 can be suppressed.

[Handling error packets]
Based on the detected temperature, the control unit 113 handles packets determined as errors by the inspection unit 1154 among the packets received by the communication apparatus 100 as follows. For example, when the temperature range is Ta as shown in the row of the control type “handle of error packet” in FIG. 6, all packets including a packet determined to be an error are received. On the other hand, when the temperature range is Tb, a packet determined to be an FCS (Frame Check Sequence) error is not received.

Temperature Ta: All packets are received (S1041)
Temperature Tb: FCS error packet is not received (S1042)
Temperature Tc: L3 (IP layer) error packet is not received (S1043)
Temperature Td: Only normal packets are received (S1044)
As described above, the control unit 113 controls the inspection unit 1154 so as to change the handling of the packet determined to be an error according to the detected temperature. Therefore, when the temperature of the communication device 100 increases, a small number of packets are received, so that power consumption required for processing of the communication device 100 can be suppressed.

[Control of PHY130]
The control unit 113 changes the setting of the PHY 130 via the PHY control unit 1145 according to the detected temperature. As shown in the row of the control type “PHY control” in FIG. 6, for example, when the temperature range is Ta, the PHY 130 is controlled to connect to the network with 1000 BASE-T. On the other hand, when the temperature range is Tc, the control unit 113 controls to connect at a lower speed of 100BASE-T.

Temperature Ta: Connected with 1000BASE-T (S1041)
Temperature Tb: Connected with 1000BASE-T (S1042)
Temperature Tc: Connected with 100BASE-TX (S1043)
Temperature Td: Connected with 10BASE-T (S1044)
As described above, the control unit 113 changes the setting of the PHY 130 according to the detected temperature. Therefore, when the temperature of the communication device 100 increases, the connection speed to the network can be reduced, and the amount of data transmitted and received by the communication device 100 can be reduced. Can be suppressed.

[Function block control]
The control unit 113 can restrict the use of each of the PCIe control unit 1141, the USB control unit 1142, and the UART control unit 1143 according to the detected temperature. As shown in the control type “functional block control” in FIG. 6, for example, when the temperature range is Ta, all the above three circuits are operated without being stopped. On the other hand, the control unit 113 stops only the UART control unit 1142 when the temperature range is Tb.

Temperature Ta: All circuits are operated (S1041)
Temperature Tb: The UART control unit 1143 is stopped (S1042).
Temperature Tc: The UART control unit 1143 and the USB control unit 1142 are stopped (S1043).
Temperature Td: The PCIe control unit 1141, the UART control unit 1142, and the USB control unit 1143 are stopped (S1044).
As described above, the control unit 113 controls the operations of the PCIe control unit 1141, the USB control unit 1142, and the UART control unit 1143 according to the detected temperature. Therefore, when the temperature of the communication device 100 increases, the power consumption for processing of the communication device 100 can be suppressed by stopping the operation of each circuit.

  The circuit that stops depending on the temperature range may be changed as appropriate. Further, the control unit 113 may perform processing such as reducing the frequency of operation without stopping each circuit.

  The operation when each control type is selected has been described above, but it is also possible to perform control by combining each control type. Furthermore, it is possible to set different threshold values for determining the temperature range for each control type. Specifically, the temperature range Tb for the packet priority can be set from 10 degrees to 20 degrees, and the temperature range Tb for the transmission / reception band can be set from 15 degrees to 25 degrees. In this example, considering the case where the detected temperature of the communication device 100 is 14 degrees, all the packet priorities P1, P2, P3, and P4 are received while the transmission / reception bandwidth is limited to 60%. Become.

[effect]
As described above, the communication device 100 according to the second embodiment controls the communication device 100 based on the control content described above so as to suppress the power consumption of the communication device 100 according to the detected temperature.

  Therefore, according to the second embodiment, the power consumption of the communication device can be suppressed according to the temperature of the communication device.

  As a result, it is possible to reduce malfunctions that occur due to an increase in temperature of the communication apparatus 100 and devices connected to the communication apparatus 100, and failures of the communication apparatus 100 and devices.

  In addition, the operation of the communication device 100 can be continued even in a poor environment where the temperature is likely to rise, and the convenience for the user is enhanced.

[Other Embodiments]
In the first and second embodiments, the communication device 100 is controlled according to the temperature of the communication device 100. Here, instead of the temperature of the communication device 100, it is also possible to change the operation mode using detection of current consumption as a trigger.

  While the present invention has been described with reference to the embodiments, the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

  Further, a part or all of the above-described embodiment can be described as in the following supplementary notes, but is not limited thereto.

(Appendix 1)
A detection unit for detecting the temperature of the communication device;
A storage unit for storing a temperature range of the communication device and a control content corresponding to the temperature range of the communication device;
A control unit that controls the communication device so as to suppress power consumption of the communication device based on a control content corresponding to a temperature range of the communication device to which the detected temperature belongs;
A communication apparatus comprising:

(Appendix 2)
The controller is
When the detected temperature is higher than a first threshold, data having a higher priority among data handled by the communication device is preferentially transmitted.

(Appendix 3)
The controller is
The communication apparatus according to appendix 1 or 2, wherein when the detected temperature is higher than a second threshold, a data transmission / reception band handled by the communication apparatus is reduced.

(Appendix 4)
The communication device further includes:
A packet inspection unit for determining whether a packet received by the communication device is normal;
The controller is
If the detected temperature is higher than the third threshold, only packets that are determined to be normal are received,
The communication apparatus according to any one of appendices 1 to 3, wherein when the detected temperature is lower than the third threshold, all packets received by the communication apparatus are received.

(Appendix 5)
The controller is
If the detected temperature is higher than a fourth threshold value, the communication device selects and receives a packet having a high priority among the packets received by the communication device. The communication device according to one.

(Appendix 6)
The controller is
The communication device according to any one of appendices 1 to 5, wherein a connection speed of a physical interface between the network to which the communication device is connected and the communication device is changed according to the detected temperature. .

(Appendix 7)
The controller is
The communication device according to any one of appendices 1 to 6, wherein when the detected temperature is higher than a fifth threshold, a predetermined number of circuits in the communication device are stopped.

(Appendix 8)
Detect the temperature of the communication device,
Based on the control content corresponding to the temperature range of the communication device to which the detected temperature belongs, the communication device is controlled to suppress power consumption of the communication device.
A communication method characterized by the above.

(Appendix 9)
9. The communication method according to appendix 8, wherein when the detected temperature is higher than a first threshold value, the data handled by the communication device is preferentially transmitted from data having a high priority.

(Appendix 10)
The communication method according to appendix 8 or 9, wherein when the detected temperature is higher than a second threshold, a data transmission / reception band handled by the communication device is reduced.

(Appendix 11)
Determining whether the packet received by the communication device is normal;
If the detected temperature is higher than the third threshold, only packets that are determined to be normal are received,
The communication method according to any one of appendices 8 to 10, wherein when the detected temperature is lower than the third threshold value, all packets received by the communication device are received.

(Appendix 12)
Any one of appendices 8 to 11, wherein when the detected temperature is higher than a fourth threshold, a packet having a high priority is selected and received from the packets received by the communication device. Communication method described in one.

(Appendix 13)
The communication method according to any one of appendices 8 to 12, wherein a connection speed of a physical interface between the network connected to the communication device and the communication device is changed according to the detected temperature. .

(Appendix 14)
The communication method according to any one of appendices 8 to 13, wherein when the detected temperature is higher than a fifth threshold, a predetermined number of circuits in the communication device are stopped.

(Appendix 15)
Processing to detect the temperature of the communication device;
A process of controlling the communication device so as to suppress power consumption of the communication device based on control content corresponding to a temperature range of the communication device to which the detected temperature belongs;
A program that causes a computer to execute.

(Appendix 16)
The program according to appendix 15, characterized in that, when the detected temperature is higher than a first threshold value, processing for preferentially transmitting data with high priority among data handled by the communication device. .

(Appendix 17)
The program according to appendix 15 or 16, further comprising a process of reducing a transmission / reception band of data handled by the communication device when the detected temperature is higher than a second threshold.

(Appendix 18)
A process of determining whether a packet received by the communication device is normal;
When the detected temperature is higher than the third threshold, a process of receiving only packets determined to be normal;
When the detected temperature is lower than the third threshold, a process of receiving all packets received by the communication device;
18. The program according to any one of supplementary notes 15 to 17, characterized by including:

(Appendix 19)
Additional processing 15 to 18 further comprising a process of selecting and receiving a packet having a high priority among the packets received by the communication device when the detected temperature is higher than a fourth threshold value. The program as described in any one.

(Appendix 20)
The processing according to any one of appendices 15 to 19, including a process of changing a connection speed of a physical interface between a network to which the communication device is connected and the communication device in accordance with the detected temperature. Program.

(Appendix 21)
The program according to any one of appendices 15 to 20, further comprising a process of stopping a predetermined number of circuits in the communication device when the detected temperature is higher than a fifth threshold.

100, 1000 Communication device 110 Processor 111, 1001 Detection unit 112, 1002 Storage unit 113, 1003 Control unit 114 Processing unit 120 DRAM
130 PHY
1111 Temperature detection unit 1112, 1113, 1114 Comparison unit 1141 PCIe control unit 1142 USB control unit 1143 UART control unit 1144 Core 1145 PHY control unit 1146 DRAM controller 1147 DMA controller 1148 Transmission queue 1149 Priority control unit 1150 Band control unit 1151 MAC
1152 Reception queue 1153 Classification unit 1154 Inspection unit

Claims (10)

A detection unit for detecting the temperature of the communication device;
A storage unit for storing a temperature range of the communication device and a control content corresponding to the temperature range of the communication device;
A control unit that controls the communication device so as to suppress power consumption of the communication device based on a control content corresponding to a temperature range of the communication device to which the detected temperature belongs;
A communication apparatus comprising: The controller is
2. The communication apparatus according to claim 1, wherein, when the detected temperature is higher than a first threshold, data with high priority is preferentially transmitted among data handled by the communication apparatus. The controller is
The communication device according to claim 1, wherein when the detected temperature is higher than a second threshold, a transmission / reception band of data handled by the communication device is reduced. The communication device further includes:
A packet inspection unit for determining whether a packet received by the communication device is normal;
The controller is
If the detected temperature is higher than the third threshold, only packets that are determined to be normal are received,
The communication apparatus according to any one of claims 1 to 3, wherein when the detected temperature is lower than the third threshold, all packets received by the communication apparatus are received. The controller is
When the detected temperature is higher than a fourth threshold value, a packet having a high priority is selected and received from the packets received by the communication device. The communication apparatus according to one. The controller is
The communication according to any one of claims 1 to 5, wherein a connection speed of a physical interface between a network to which the communication device is connected and the communication device is changed according to the detected temperature. apparatus. The controller is
The communication device according to any one of claims 1 to 6, wherein when the detected temperature is higher than a fifth threshold, a predetermined number of circuits in the communication device are stopped. Detect the temperature of the communication device,
Based on the control content corresponding to the temperature range of the communication device to which the detected temperature belongs, the communication device is controlled to suppress power consumption of the communication device.
A communication method characterized by the above. The communication method according to claim 8, wherein, when the detected temperature is higher than a threshold value, the data handled by the communication device is preferentially transmitted from data having a high priority. Processing to detect the temperature of the communication device;
A process of controlling the communication device so as to suppress power consumption of the communication device based on control content corresponding to a temperature range of the communication device to which the detected temperature belongs;
A program that causes a computer to execute.

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